First, please stop reading my post and assuming my intentions or goals with it are a different thing than I specifically stated just because it fits your narrative better. It's invalidating, incredibly toxic, directly attacks my agency on this conversation, and definitely doesn't contribute to anything positive. If I was annoyed at the argument itself I'd have said as much myself, thank you.
Second, please do research into how Splatoon's netcode actually works - there's not "match host" in the traditional sense; there's a master console that controls general parameters about the match, yes, but most of the communication is a mesh between all the clients, with no console acting as a "host" in the conventional sense. You can learn more
on this Oatmealdome blog post. - before making assumptions on it.
Third, I'm bringing up those other problems as an example of why this isn't "getting fixed". It isn't "getting fixed" because the "fix" is trying to make up for people's individual internet connections not being up for the networking requirements Splatoon has. And maybe in some of those cases, there just isn't anything to do there, and their internet connection just isn't up for it. By the time I got to the thread there was people suggesting that user that their experience wasn't universal, and he was just blowing them off. Very little advice to offer there save from restating that same thing.
Fourth, and this is the point I wanted to make: People should get used to having to fix things on their side, even if it isn't technically "their fault". The coil whine situation is a perfect example, actually. Yes, it's Sony's fault! You can either yell for ages at Sony about it being its fault, or you can try to get it fixed!! The Joycon Drift is Nintendo (and whoever makes the analog stick sensor's) fault! Complaining isn't gonna get your Joycon fixed!! Splatoon's netcode and network structure could be better, ISPs could have better infrastructure, router manufacturers could make better products; but you can actually make it better on your side!!
Is it unfair? Absolutely! But as I see it, the choices are basically "Just go and fix a problem that isn't your fault" or "Keep complaining about it, do nothing to fix it, nothing gets fixed". One fixes the problem, for you, on your end, even if it wasn't your fault. There's an immediate improvement to your quality of life. The other doesn't do anything but give you an outlet to be angry; problem doesn't even get fixed at all, you just remain mad forever. And this is general life advice. Yes, it is unfair, but sometimes you have to fix stuff that isn't your fault. Then if you want you can complain, because complaining is fair. But get it fixed first, for your own sake.