AOA at that point on the map:
Corrected or not, any light unit will be destroyed and any armour routed in that area by a couple of salvos from 4 smerches, so all these spread out and don't blob comments are bullshit. Sure you can spread out your defence to an extent, but that just means THEY BLOB and steamroller through it.
Yeah that's a picture of an uncorrected barrage. You ate a corrected one. If it was uncorrected it would not have been half as bad and at that range he might have even caught his ally a bit. You're acting like the fact that you'll catch about a third of the amount of rockets in an uncorrected barrage just doesn't really matter, and it isn't true.
As for the "you have to blob" thing. Go watch some of Tigga's or Selkares' replays. They're way, way more spread out than you are and they seem to do alight. Not to mention that if your opponent blobs to try and charge you then it's your turn to arty him.
What would you actually like to see changed about rockets? I mean if you wanted a longer reload/ aiming time and a LITTLE less effect on heavier units I think that would probably be ok, but if you want to be able to have your entire army take a corrected barrage from 4 smerches and not rout then I don't think that's going to be balanced. If that were possible then players could stick their entire army in a forest and they'd be basically impossible to dislodge. And that would be lame as hell.
EDIT: Oh sorry you already posted this. I don't think the cap is a good idea because the more someone turtles, the more arty you should be able to buy to deal with it. If you buy too much then you're vulnerable in other areas, as you could see from the replay of the game you played in (even if your ally sadly didn't take advantage of that).