I think it helps 3PP creators to embrace and spread the narrative that the sky is falling with D&D, because it goes hand in hand with "But hey, buy my product! My products and I are objectively better than Wizards and Hasbro." That literally brings them business. That said, I do see their fans and advocates doing it more often for them.
Like many here, I've witnessed the rise and fall of many games, and D&D editions. I've been around for all the prior ups and downs and every time people said D&D is dying (the Death of TSR and resurrection with 3E; and the 3.5/4e/Pathfinder split, and the D&D Next complain-fest, and the OneDnD complain-fest.) D&D is still here, despite the (some say deserved) hate of the 800-lb. gorilla.
It will always be a business for someone. Look at the 3PP clones who call Wizards stuff terrible and push their stuff as objectively better. Maybe they think it can only help them to be hostile. And it may be a legit response for them because of what they observe to be hostility from Hasbro/Wizards. But when I saw the early advertisements for what became ToV in early 2023. It showcased an OGL-fueled, venom-laced opinion of 5E that misrepresented opinions as facts (like 5E wasn't going to be supported any longer, so buy theirs). That negativity is all it took to turn me off and I didn't look into it further. I don't see A5E doing that (but I see when their fans do). Morrus is class act, and is carefully diplomatic. I did buy A5E to enhance my D&D games (I like the monster/treasure layouts a lot).
We'll see how 2024 pans out, but I just don't see the smaller, vocal, online groups making a dent in the millions of players that play 5E for its ease, accessibility, live-play visibility and familiarity, especially if the public doesn't pay attention to the negative press because they see the clickbait too, and don't trust their facts.
But those people who do their darnedest to spread the negativity and shut Wizards down... I see when they are being honest, but I also see when they inflate it or mislead things compared to my own knowledge and experience. And that turns me off. How many people did I see that saying that the Hasbro/Wizards leadership took 20mil bonuses each alongside the layoff? Enough to know that they don't know what they are talking about and are coming from their feels to create clickbait. Now I am against US Corporatocracy and can't stand that Wizards is controlled by shareholders. And I will vote with my wallet. But I play the games I like. I support designers I like. And I do like the designers and artists of 5E, despite the challenges caused by their parent companies, and despite my perception that there is a divide between their art and the owners of their art.