While I can see your points, I actually enjoy the idea of having durability. I find it intuitive and immersive, which I greatly prefer in my RPGs.
That's why i argue for extending the current system to be more fleshed out and adding some sub-systems.
We should make it one of those things that has cost vs gains decision making and strategic value.
Removing it would be an overly simplified attempt to solve things and leave holes elsewhere
And while I don't actively dislike your suggestions it makes me feel akward cause it doesn't seem like an intuitive replacement.
I do however think the skills/effects you suggested should be added regardless of what happens, actually. I like the idea of letting people choose to either invest in lockpick or use a crowbar in the same vain as the unlockspell except more rare. The disarm and disrobe effects can be tied into melee fighters to give them more flavor and expend their repitiore of skills since we have such a flush of magic trees
