over-reliance on grens is fast route to defeat.
if you lose your pio-squad early, getting T2 would be postponed, especially if fighting gets fierce, and needing to prioritize mg, mortars or grens.
how about they come out as they currently do, but arrive with 50/50 K98 and STG44? and when T2 is built, STG44 upgrade is free for whole squad?
I actually made a similar suggestion a while back. Basically I said Panzergrens should be built initially with 4 K98ks then given the option to upgrade to 4 StGs or 2 schreks. They deleted my comment. Maybe that was too much but personally I hate the fact that they maintain their cheap squad wiping supernade even after their Schrek upgrade. It makes them still a potent anti-infantry sqaud with serious AT abilities.