Definitely, I understand as someone who's felt similarly especially these days when everyone always begs for a Switch Pro because the Switch is "outdated and bad". It plagues a lot of Switch releases so I feel a little sensitive when games I'm excited for get bogged down by the talk. However sometimes I do wonder why Nintendo and their partners struggle so much with exclusive Nintendo console releases. Like, they should be the ones leading the charge for technical capability yet they are usually, if anything, the reason why people complain about Switch specs. We know the Switch can do waaaaay better than what they produce in games like FETH, every Pokemon game, SMTV. They are somehow the most technically incompetent.
That's why I appreciate companies like Ubisoft Milan, PlatinumGames, Monolith Soft, Retro Studios (when they do release games), Capcom (the MH games), Next Level Games, Virtuos, The Zelda & 3D Mario teams for being the main examples of technically proficient developers for Nintendo hardware. They know how to find the perfect balance of art and technical design too to create visually impressive games. Even Camelot (which we know is a very underbudgeted and understaffed dev team) makes technically nice Switch games. Aces and Super Rush, though short on content which I definitely agree they should be given more time and budget to make more complete games on release, look great. Intelligent systems is good when it's in house developed.
Koei Tecmo is one of Nintendo's worst technical partners unfortunately and they're one of if not the most partnered dev for them which makes their hardware look bad when the worst tech dev team is given the most partnerships. It's frustrating that they don't care as much as they should sometimes. Maybe not even for the sake of visuals but for performance. You'd think Nintendo would care about performance hiccups when it impacts gameplay aka their bread and butter but they don't.
I'mma have to disagree with you here.
Shin Megami Tensei V is one of the best looking games on the platform and it's very open ended and goes heavy on shading and lighting effects, high poly models and particles. It sins a bit with some aliasing and of course performance (which is not exclusive to it as we have BotW from EPD). But it's quite a technical achievement. Mainly because the monster designs, poly counts, lighting and particles is way more advanced than Persona 5 on the PS4(and sans resolution, it's also more advanced than even the current gen versions). I mean from the DF review we see some comparisons to P5 and SMT V really glows with its shading, textures and lighting. The demons look way better here. And that's from someone who absolutely loves cel shading and loves P5.
On Koei Tecmo, we know that with probably the sole exception of Fire Emblem Engage and maybe Three Hopes, their optimization is very compromised due to time constraints. Fire Emblem Three Houses took way more time since Fates than Fates from Awakening, and the game was supposed to come in 2018, even tho we know it had barely started development in Jan 2017 when it was announced, and KT also had to release FE Warriors late that year. While it graphically can look very ugly at times, the character models at least are very well done and the game is very ambitious.
Have to add here that they've done Hyrule Warriors Age of Calamity. That game, while of course flawed due to its poor optimization and severe frame drops, shares more design/graphics with BotW(Link's model looks exactly the same to me and great plateau looks like it was ported from there). So the game looks stunning as BotW looks stunning. It's not some work any studio would do.
Fire Emblem Warriors Three Hopes looks already like a step forward from Three Houses graphically, and a step forward from AoC on performance.
Talking about their non-exclusive games, I have yet to watch comparisons again or gameplay videos but I've seen people on this thread compliment them. And Atelier Ryze (2 I guess?) looks absolutely stunning to me.
Fire Emblem Engage is a looker but that doesn't reflect all the scenarios and some terrains and scenes do look a bit bland. But it's anime aesthetic, models, Collor palettes and cutscenes do glow. It's gonna be one of the best looking games on its genre actually.
I think with due time and without going too far on scope(like what AoC and FETH tried I think), they can make some very good looking games. I mean they were the ones behind Metroid Other M and that's one of the best looking Wii games ever and its cutscenes beauty is yet to be matched even by some current gen games.