With Wayland there was time to work on a lot of the kinks before everyone started seriously switching.
Not if you were using Ubuntu in 2017 when they switched to Weston as the default display server for 17.10 and lots of people suffered a great deal from how half-baked the project was at the time. For me personally, the 17.10 upgrade failed to start the display server and I ended up reinstalling completely, then in 18.04 they set the default back to XOrg and that upgrade also failed for me, resulting in another reinstall.
I have no doubt that this single decision was responsible for a large amount of the Wayland scepticism that followed.