Allow people to enforce their own order, if they want to.
Personaly im sorting spells by the usage ... first damage, then crowd control, then debuffs, then buffs, then heal, and finaly utility. See? No levels, nor alphabet was used >> therefore its not "universal"
Hmmm. That could work. At least that's some semblance of order I could work with.
You know, I'm not saying to get rid of the hot bar completely. I'm saying to provide some level of organization outside the hot bar and leave the hot bar for users to be able to use it to put their most used abilities on the hot bar however they want.
But again, that's a whole different topic. This thread is about making things a bit more true D&D 5e. So let's not get sidetracked the whole hot bar issue.