There's 0 chance of anything happening if you CC the enemy #1, which you have 100% chance to accomplish. And no, you won't get oneshot if you're being lazy and do not, we must be playing different games. But just in case, you can. And Shroud + Web is aoe hard CC which ignores armor for 3 AP, it is the ultimate aoe hard CC, because the enemies can move and can't target anything outside melee so at best they can heal themselves. 99.9% of the time you won't need it (if you're at the point you can CC 3-4 enemies with 13 AP surely you can CC 1 with 6) and can just use some normal CC but since the argument is in purely theoretical area at this point where hypothetical enemies are 1shotting your party it is going to work even if the enemy has 100k magic armor and is immune to all damage. But I'm just wasting my time arguing with you since you're clearly not capable of civil discussion and probably think you're way smarter than you actually are.
You must think that I am calling you an idiot, while I am tempted to, I am saying that your logic is idiotic, and everyone makes blunders. So, with that said, your logic is fucking retarded and we really have nothing to further discuss after this.
The bottom line is you're arguing that letting the enemy have a turn is better than not letting the enemy have a turn.
Furthermore, with this kind of idiocy you're reducing your options in turn one; you don't even get the choice to elect for a 13 AP opener.
Even your suggestion for a fall back can be improved by taking the 13 AP opener, you can move more targets into web and shroud. Gasp.
Like I said, your logic is fucking retarded with double emphasis on fucking. So, let's close the book on that sad chapter and move on.