Some more QoL changes I'd like to see:

All cooldowns timers reset when a party wipes. It's silly that you sometimes can't use a skill right away even though you're having to restart the entire fight.

The Party Finder list automatically refreshes every 30 seconds. The refresh button is nice but it needs an automatic refresh.

A pet alert when its out of range of somebody it's trying to target. Preferably something more than an error message on the screen. Maybe have a red X appear above the pets name for a few seconds after it fails to use a skill.

For the love of god make it so enemies lower leveled than you cannot put heavy on you. You should not be punished for riding your mount. If you're 50 then weaker 49s should not be able to heavy you.

Have an option in the settings to put the recast timer on your skills. A tiny white number at the bottom. That way, you can know exactly when it'll be up instead of trying to estimate it.