Multi-hit Skills

Or they could divide all damage and HP by 10 and save themselves the trouble of raising the cap (and somehow make it work with Snails and Blue Snails...)

When damage starts getting to close to the cap you either raise the cap or decrease everything related to damage.

This. Increasing/removing the damage cap or diving all damage and HP by a set number would have been better the issue than making most skills hit multiple times. I guess at first they thought this was an issue of just a couple of classes (Paladins only I think) so turning skills into multi-hit was way easier and had lower risks, but since potential it came out it became an overall problem.

Maybe they are also doing this to transmit an overall sense of strengthening among all jobs.

With monster HP bars available in game, and bosses having a big HP bar, I don't see why we don't have an option to display on/off damage numbers (only on monsters, not on yourself).

This would basically fix lag and multi-hit aesthetics, I would definitely use it. Not like I fap to numbers I see. Or even better, give it more options in case a boss uses attack block or something, so you can notice it.

Display damage options:
[ ] All [ ] Self [ ] None

This would also work pretty well