Wayland wasn't the first attempt at replacing X. It has made more traction than any other attempt, though. There's no real hurry - it's not like X eats your babies and runs over your dog.
As far as robustness goes, that's mostly the driver. I've yet to see a bulletproof display system, commercial or non-commercial. If you cut out driver issues, X is on par with or more stable than other systems. It had better be, given that it's had decades of bug fixes with few new features to cause new bugs.
I'm sure the low flow toilets thing was written for him. Cheap low flow toilets have problems flushing. Mid-range and high end ones - i.e. any his ass has actually touched - flush just fine.
That's why you never go for the cheap option when toilet shopping. It's not worth it.