I said "That's a good thing" from Apple and Google's point of view. They are public companies with shareholders who don't want them to contribute to potentially illegal behaviors. So it's a "good thing" for them to have the companies comply with the governments.
But this phenomenon itself is not a good thing, so I do think decentralized projects should fix this problem. But centralized companies should not advertise themselves as being able to tackle this type of problem because it's not possible.
This brings us back to the original issue I pointed out. Telegram knows Very very well that they have this issue. Ask anyone who has built a mobile app if building a decentralized ecosystem on top of Apple appstore is possible and they would laugh at you. But Telegram did. And they raised billions of dollars for that false vision which they knew was impossible to achieve as a centralized organization with a product that depends on a centralized platform.
I don't really consider that a good thing. Having government controlled gatekeepers that take 20-30% off of every app with platform lock-in is not a great thing. We rail constantly about FBI/NSA enforced backdoors, especially people in Europe that are potentially having all their data harvested.