Yes, most are very reasonable, but for example things like semi-permanent companion death are just creating unnecessary reloading, or if you don't want to do that then you just walk to nearest priest and after formal fee, your companion is revived anyway. Some might say this is immersion. I would say it's just waste of time. Deaths should be made unwanted in some other way and (I know some won't like this) I think DA:O did great job by making revived characters "wounded" until you could cure them.
Also I think the old "spell and ability memorizing" system is outdated. It's just another version of cooldown mechanic. In old RPGs you had to sleep to memorize spells, which again is waste of time because all you need to do is go to nearest tavern or other place where you can rest and *poof*, spells are again usable. Nowdays you just have to wait certain time until you are going to be able to use the spell again. Just more streamlined version of the old system without unnecessary running around. I know in some dungeons you couldn't rest and so you had to think carefully your use of spells and abilities, but they can be made hard in so many other and IMO better ways that it's not really worth it.
There is a difference between "clumsy" and what I would say is instead "out of style."
Out of date implies inferior to new... and when it comes to most of the requests, they are matters of taste and opinion - not a quantifiable "inferior or superior" in the sense of game design advancement or technology.
Wanting CGA graphics instead of at least XGA - that's clearly inferior, out-dated tech.
Wanting text instead of voice - that's not "out dated", it's a matter of choice.
Characters being unkillable existed in early video games, it's not a new phenomenon. So the difference between companions being invulnerable or able to suffer death is a game design choice, or a player's preference, not inferior or superior. It may be out of style, but it's not out dated.
I don't want spell memorization, but it's not inherently inferior or out-dated... it's a matter or opinion or taste if it is good or bad.
Just my two cents on this.
How is the Baldur's Gate interface Clumsy?