Also, let me be clear here: I'm talking about current version of Pfusies (280mp/6-man/2cp) not the modded 250/5.
You are messing so many things up.
First "i wont go into "what range is best range" discussion but you went into saying that pfusiar are "best" figters far and close range. The latter is wrong. G43 are a simple flat upgrade with great dps on the move its not a CQC weapon, otherwise bring shock troops to the fight and see what happens.
Pfusies models drop faster than 4 Man IS behind cover and thus its dps drops linearly with each model killed. But IS are more durable and even more behind cover. Thats why they are "weak".
Then you move into the 6 man fragile concept. Again pfusies are fragile meaning their models drop faster than others in the same category. "wipeability" of 6 man squads is low, everyone knows that but only you use semantics to twist arguments.
Finally that fantastic list of yours to say that pfusies are "premium" inf... you basically compare pfusies to cons. Any inf is elite compared to cons. Still no mention to 1v1 engagements (means they loose a very few of them), vision? (are they supposed to be blind now?), their grenade is a joke (it should be a decent one tho), any of it makes any sense.
Premium (above average performance) is not what pfusies do currently