Fair point, I forgot to add the 30 MP for the fifth model of Grens. Yes, then I agrree that those squads are roughly equal in costs.
In general I think though that doctrinal abilities should not be stronger by default than stock choices. It is good enough if they offer a viable option.
Lumping the 5th model in with grens cost while leaving out the mp and fuel cost to unlock nades and upgrades for rifles doesnt show a complete and honest picture.
Vsl grens shoudnt be on par with fully kitted rifles or sections, ost regardless still has acces to their entire stock arsanal witch dont struggle vs allied inf mostly, its just grens that do with 4 men and vsl remedies that.