I just don't think any of those features matter as much a battery life, most of them are about encoding speed which just seems wildly unimportant to me: encoding may be more work, but generally you view images far more than you make them, and admins and creators are in a better position to spend the time/effort to encode something, and hardware encoding may well end up making it a non-issue anyway.

People are out there running `zopflipng` and the like to try and get better sizes at the cost of more work at encode time, so it seems like that priority isn't just me.