First time?Yes. This is moment in our hobby where we learn that we no longer matter, that we can't play the way we want, that content is packaged by a corporation that has no foundation in games anymore (when even WotC had connections to magic cards).
And this is the time when many fans (like myself) realize that it's artists, creative minds, and those who have inspiration that we want to invite into our imaginations - those who fantasize about dragons more than dollar signs.
D&D has lost its soul. I'm not going to sell my imagination, my hobby time, my precious moments with friends and family, to the highest bidder ... people who clearly can give a rat's behind about how we enjoy the game.
Flippancy aside, that's nonsense. WotC isn't coming to your table with attorneys telling you how to play. It's pretty easy to avoid all of this drama by just continuing to use all of your 5e material, and in fact, buying anything for it 3pp that you had your eye on. Most likely, you can get enough material to keep you gaming successfully for decades without needing anything else new from WotC.
It sucks to be a 3pp content creator, but it makes little difference to you as a player. Just keep playing the game you already have and ignore WotC completely. Heck, I've been doing that for years already. It really does work fine.