They should make it so you can’t swap. Oh, wait, they tried that. Everyone complained.
What players really want is to be min/maxed for all content with no drawbacks as conveniently as possible. Blizzard will never again make anything like covenants, or the aldor/scryer split, or anything that involves choice and player power without trivializing the choice to the point that they might as well remove it as a choice.
This is part of the reason old talent trees were removed, after all. But memories are short, and they’re bringing them back, and I give it 3 months before people complain how cumbersome they are. Wait, never mind, there’s already a thread: No "Dragonflight" in Development Forum?
Hell, I’m surprised people haven’t complained about the 7-day lockout on vantus runes yet.