Not at the DCs Kinnies get.
View attachment 17007
This is like lvl 6?
It's AoE Trip with the Dismiss built in at zero Burn. Not terrible, no.
As for the general question, I defer to your AoE placement mastery. Biggest problem I have is that the boundaries of the AoE aren't clear even on the ones I use like Glitterdust.
Bottom line is opportunity cost of using Grease/Web/Entangle early is party slot where you could have Jae or Reg or whatever instead.
View attachment 17008
View attachment 17009
(Reg is bypassing DR/10 Silver here with +3 Weapon from Arcane Weapon Enhancement). See also Wererats.
And then Slow soon beats them all since enemy only and you can upgrade to Pits and Difficult Terrain (that you can get immunity to) at that point as well.
Then there's people playing caster MC since there's no "pure caster" companion and a lot of new players struggling since the assumption is that Bards suck (as they pretty much did - trying playing BG Bard after P:K) so they take Octavia over Linzi and wonder why the game is so hard.
We're all familiar with dragging along the low level mage knowing that we'll get the payoff later. Only thing I'm saying is that in this game you don't have to do that and I think a lot of people miss that point.