Why do you find that strange? They were lax on leaks towards the end of the Wii U because it was free marketing and built anticipation at a time when they simply couldn't afford to create a huge marketing campaign.
Now the Switch has given them infinite money and popularity, that kind of thing could instead actively harm their business, so they've cracked down on it.
The context is very different.
In 2016, Nintendo were on the verge of irrelevancy. Their WiiU flopped hard, they needed to let people know that they were actively working toward a new exciting project.
Today, the Switch is on its way to be the most successful console ever made and it is still selling well. They need to be as quiet as possible to keep Switch momentum. And with this success, they have the power to pick trustworthy partners and put enough pressure on to keep it a secret.
And still we know a lot already lol.
Any receipts for this? Especially the 'limited funds for marketing' is both hilariously implausible and are you suggesting that Nintendo allowed that Eurogamer article as cheap marketing? A newspiece that at most a few thousand people have actually read?
For consistency, I'll continue using Eurogamer/Digital Foundry reporting from here.
Sony and especially Microsoft have even more 'infinite money and popularity', yet PS5 + XBox Series X specs were already accurately reported on between
Dec '19 and
March '20 . If we accept that both PS4 and Switch were/are popular, successful consoles with direct successors lined up by the manufacturers, this completely diverging reporting only makes sense if Switch 2 is releasing H1 2024 at the earliest, subject to some credible reporting emerging in the next few weeks.
This is now more than 10 years ago, but in
April '11 , also more than 12 months before release, Wii U was also accurately foreshadowed on.
The Nvidia leak of
Mar '22 got a segment on DF Direct Weekly, but I straight up do not believe that this is equivalent to the preceding examples. For one, the source is different (Nvidia being hacked != specs leaked by game developers) and the clocks within that leak and the chip size don't wash as seen throughout this thread.
In conclusion, I doubt that this 'T239' device is releasing this year. Although I offer no hints/proofs beyond the historic pattern of reporting by credible news sources, I propose that this is still ample justification for my claim. If T239-based Switch 2 does release in H2 2023 I will be over the moon personally and you can all laugh at me. I won't much care since, again, I'll look forward to playing on exciting new hardware!