Yes! I think that all makes sense. We have it figured out.That's actually quite fair and stops players (or just discourages them) from just resurrecting something and immediately equipping them with super-powered weapons. Of course, it should be eventually possible to equip them with strong weapons by letting undead get stronger with experience.
Really, what I want to see in necromancy is the ability to essentially just create a new party member from a dead body. Except, to differentiate it from any normal mercenary or adventurer you find in the tavern and go travelling with, these undead minions would be both very controllable, and completely loyal and fearless (not really the right words to describe what's just a brainless skeleton you order around, but you know what I mean), so as to provide an actual benefit over said tavern-goers. You can give them equipment (so long as they can use it) and give them very specific orders or even control them directly, if you wanted to.
As for balancing's sake, I think the best way to do it would be to limit how many undead you can have following you by making undead companions be a continuous drain on your focus, and more focus is needed for stronger creatures.
Make equipment given to undead deteriorate faster, and get heavily damaged when your minion perishes. Also, of course, the undead's skills and such are all gone, so the next creature you resurrect would be rather weak compared to it. This, combined with the fact that newly created undead don't have the skills to use very strong or complex equipment, would stop a necromancer from just taking an infinity+1 sword and an infinity+1 armor set they found in a dungeon somewhere and giving it to their resurrected companion and get a ridiculously strong party member that mows everything down, only to just pick it up when it inevitably dies and hand it to the next one.
I just hope that the devs agree...