The ability to wipe a squad 20% of the time, as in 1/5 shots is extremely powerful.
If you attack move with volks, on a open field, with no enemy's to face then yes your volks won't group up, but in any other situation they tend to bunch up into a ball or what we like to call "a blob" making them very weak to things like HE shells or other explosive forms of ordinance. And I can't believe that you have so many games played yet have never seen an infantry unit clip into another one.
I didnt say whiping even 1 in 5 was fine for the Record. I dont think it is. But this is the squad whipe Patch. See the Rnade comparison.
A blob doesnt have to occupy the same space. Just a TON of units A moved. I never see them all in one place usually spaced out and CTRL Grouped to A move from Point A to Point B. As long as you keep A moving them this way and they never reach the final destination they wont turn into a Ball.
So the long answer to your question...I dont play team games so I dont see death balls. I do see blobs. But of a different nature.