5 man grens with no upgrade is just not worth it. They will never be as durable as cons , still have higher re inforce costs and without mg42/g43 will not be able to inflict damage. Look at what they will be fighting, allied squads that not only will be at least 5 man, but with single/dual upgrades, they still will get wrecked.
The choice is clear, either a damage increase for grens or tone down riflemen and tommies.
Grens are not the only axis infantry you know
How do you expect Tommies or rifles to fight Pgrens or Obers if they get nerfed again?
As the tournament showed Ostheer are more than fine vs allied mainlines.