No, why should grens be able to take on the best fully upgraded of allied infantry on their own.
Rifles require racks and double bars @120 muni 150 mp 15 fuel.
Sections require racks, 5 man, and double brens @90 muni 300mp 50 fuel.
(single bren will probably do with 5 man fighting from heavy cover)
To beat stock lmg grens.
Neither of them have grenades at this point.
Sections dont have snares either.
Making Grens go toe to toe with the best of allied mainline just like that is a joke.
The problem with that comparison though is that it only held true if USF/UKF would pay for their plus and the side techs come in addition to that.
At least fuel wise, this is not the case if you consider both full tech and the required tech cost to medium. MP wise there is also not a huge difference iirc, although MP economy is quite a bit more variable.
Those 1:1 comparisons (as you also did in your second post) are not bad by default, but the way you did was neglecting the whole context around the units, faction design and you also left out the advantages of USF/UKF over OST to skew it into OSTs favor.