There's nothing wrong if you and your group decide to go back to DND. You wanna play 5E or any of the older editions, then that's totally fine. (Especially if you dedicate your purchases first to 3rd party content/other content creators and THEN see if you want to buy any official 5E products).
There's nothing wrong, because of WoTC souring goodwill, if you/your group don't want to play/support em again as a result of it.
And there's nothing wrong if everybody switched to a new system, even if getting pretty much what was wanted, was achieved.
Right now, people have seen there are PLENTY of options that exist out there for the TTRPG scene. And right now, a number of major players in the TTRPG scene are taking steps now to create their own systems/working up defenses for the next time, if WoTC decides to be stupid/this happens again. (And hopefully it never does. It shouldn't now thanks to the 1.0A OGL being left alone and the CC happening). And now you have the ORC coming about and how that will probably make a big splash on the scene. (Honestly, it probably was part of the reasoning on WoTC's end to upload/update the whole 5E System SRD 5.1 alongside everything else as well).
Regardless, don't harp on people who decide to resume playing 5E. I've seen a number of bad takes that were along the lines of "Man, I just love how everybody just NOW forgave/love WoTC now that the OGL is safe. Guess you all didn't want fair equal treatment all along and were just joining the fight for Clout."
Or insert whatever other bad take response people can come up with.
Let people just FINALLY take a deep breath now and enjoy some dice rolling. It's still a Victory. And WoTC learned an important lesson: it's gonna take some time to regain the goodwill they've built up. So even if it takes forever to forgive em, then so be it. And if it never happens? Oh well, tough its.
Nobody has said that we've forgotten.