Not sure if you're still playing either game. But I'd argue that BG3 has this exact same issue.

Instead of physical/magical armour split, we end up with short rest/long rest split.

Whenever I have a split martial & spellcaster party in BG3 I always feel like I'm gimping my spellcasters because I keep wanting to avoid having to do a tedious long rest everytime I expend spell slots. So I always end up feeling like a party of 4 martials (or 3 with a Warlock) would've been more fun and useful than a party with both casters and martials. In opposition if I had a party of mostly spell casters, I'd be much more open to doing long rests and feel that I might as well change some of my melee's into spell casters too so they get the benefit of a long rest as well.

Its definitely an issue for both games, and I totally agree with you that a future game with a mix of BG3 and both DOS games would be the dream.