This is very hard to explain to your users, because there's nothing they can do.
So yes, it really doesn't matter too much why if the software doesn't work. I don't mind X until Wayland is ready for all.
As long as enough consumers don't actively demand decent Linux (or BSD, whatever) support, it will never come. I'd suggest voting with your wallets, but with the laptop market being the steaming pile of shit that it is, that's virtually impossible.
The year of the Linux desktop...just like fusion power, is always just around the corner.
I tried to vote with my wallet, but this is what Linux is like /shrug
Now I use only Intel because... well, it works. But I don't bother with 3D gaming, of course.
My point is that you can blame the manufacturers because their support is broken, but you can't blame the users because they will use something else (I know I did: XFCE works great).
EDIT: Gnome shell was initially released in 2011. This may or may not have changed, for better or worse. I moved on.
I agree, you can't blame users for it, but you can totally tell them to try to switch. DE and Wayland compositor developers can't spend resources cleaning up the mess that Nvidia created by refusing to upstream their driver and preventing Nouveau from working properly as well.