You're here complaining that a maintainer isn't around to add features in a thread that's literally a major maintainer of X server telling you he's not going to work to maintain the project anymore.
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Here's my take on your position - I absolutely agree that if you have processes and tooling in place that you currently depend on, and can't replace, you should stick with X.
That said - As a way to manage input and output on my system (MY system, with my preferences and my requirements) I've found Wayland to be a delightfully better experience than X.
So to come back at your list of requirements, mine looks like
- Multimonitor support, including mixed scaling ratios
- Touchpad input with gestures, approximately in line with the experience on OSX
- A sane "default" that does not constantly require that I manually edit settings or xconf files on EVERY system I touch
- No screen tearing or flickering. Seriously - NO!
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The difference between the two lists, is that I believe Wayland can eventually replace the tools you need. I no longer have any faith that X will be able to solve my requirements. Wayland does.