Not it is not because "weapon profiles" goes along with "relative positioning" where a player tries to fight at the optimum range for the specific firefight. Mainline infantry that are good at all ranges like penal and STG V.G. make "relative positioning" a far less effective tactic since the enemy gains very little advantage regardless of range.
That's not true at all, charge with volks/penals right through long range bren/mg42 and keep fighting at long-medium range.
You win't win without at least outnumbering the enemy 3:1.
Only double bar break those rules and are too good both at close and long range.
Both gren and IS vet to be the best long range infantry and penals and volks will have an hard time at close-medium range even outnumbering by a huge gap shick unit like ppsh and panzergrens.
Not evert army has a specialized mainline, and that's ok as long as they have an hard time against more specialized that are fighting in their optimal conditions.
Volks are meant to be the filler until doctrinal or ober infantry, used with sturm, they should retain such versatility because anything more specialized would make them either op or up.
Like i said, penals should come closer to volks in dps curve, and buy their stv, so they stop overshadowing shock troops.
Further add that those "JACK OF ALL TRADES" mainlines are in factions that aren't supported by a tier 0 hmg and in case of okw a barely decent one.
AND those troops, despite being numerous, have less RA than more specialized one.
FINALLY ukf and ost have specialized cqb units like panzergrens and R.EG.togheter with the best hmg's.
A mg42 gren/bren will still have upper hand against all three of those units (again except double bar) at long range and panzergren/commando will still dominate those at close range unless outnumbered (again except double bar).
Thinking of infantry balance with "specific optimal" positioning for every mainline is an utopia and ectremely disadvantaged for factions like okw and isf that trade such dps curve versatility with shitty team weapons or late team weapons abd lack of specialized non doc cqb unit.
DON't GET ME WRONG i can see your point, using rifles, volks, penals, despite still requiring tactics and map awareness, is much less FORGIVING indeed.
Yet we can agree that is faction design, not necessarily a flaw, at least until those factions can't rush 2 hmg to westwall buildings