MAybe the fact that this is such a commonly confused mechanic in 5e is why they changed it? If 5e players still get it confused, how will the average gamer understand?
That's not my opinion though, I feel like with good tooltips on the spell / condition that wouldn't be an issue.
This really irritated me in my first playthrough when I tried to kill Arron in the grove and he used invisbility and ran.. I still knew where he was but I had to wait for his invisibility to wear out before I could keep attacking, it was just dull. Now on my latest playthrough I've been abusing the hell out of it.. casting cloud of daggers with my sorcerer and then drinking an invisbility potion o nthe same turn and safely holding my concentration.
I don't think it's fun in either case though.. when enemies use it it makes me go "reeeeallly?" and when I use it, it feels like cheating.
I had the same problem with the last duergar in a fight. He was invisible and I was forced to expose myself to a sneak attack to get him to appear so I could finish him off. That's just bad design all around. Went through 5+ rounds of just doing nothing before finally offering up a character in sacrifice to get him to reveal himself.
