As long as the game is filled with one-click abilities that will utterly take out any 600MP stationary unit, I don't think this is the most viable approach.
Certainly not vs the ISU, which will randomly wipe full-health squads from the map.
More than that, many people feel that the super-range and super-sight leaves us with poor gameplay. These units just need to be changed.
Blobbing is being rewarded. I think buffing arty is more than make it hit what it shoots. Make it take units to counter or multiple strikes. Its the darling unit of some doctrines after all. It should behave that way. If you give up a call in to have arty on your line up it should be viable.
The ele problem i talked about was easily countered this way before the nerf with either the Kats or ML20. I never had a problem and ele hasnt gotten a meaningful buff since then. The problem now is you have no way to counter the blob.
Same goes for Soviets. The problem with the ISU is that it can sit around its support teams in a static defense just sitting there and there is nothing that Ost can do about it. Before hand if you did this a werfer would rape your T2 spam.
I firmly believe that if Arty both doctrinal and non doctrinal was effective against I dunno static targets then these problems would largely go away.
Both the Ele and the ISU could remain as powerful for cost (since its justified) and could be countered.
Remember the Werfer has good Penetration too. So it can actually damage an ISU at range if it could actually hit it....