Wayland has it's fair share of problems that haven't been solved yet, but most of those points are nonsense.
If that person lived a little over a hundred years ago and wrote a rant about cars vs horses instead, it'd go something like this:
Think twice before abandoning Horses. Cars break everything!
Cars break if you stuff hay in the fuel tank!
Cars are incompatible with horse shoes!
You can't shove your dick in a car's mouth!
The rant you're linking makes about as much sense.