I can't edit my original reply to you because I'm not on desktop right now and the mobile app I use doesn't support edits, but here's the response from the waycooler dev. Note he actually was talking about wayland as a whole, not just wlroots. Obviously it's just one take on the matter, but it's a credible one based on their background: https://github.com/baskerville/bspwm/issues/199#issuecomment...
I would take that person's opinion on smithay/anvil with a grain of salt as they are not a dev there. They are making steady progress so you can just check the code there. Maybe ask one of those contributors for their opinion?