After watching the clip it's my opinion that, as per usual, Porygon is just spewing hyperbole.
If the Assgrens had won this engagement I would say things were unbalanced. They were unsupported and constantly moving. Assgrens are for flanking, taking out weapon teams and holding the fuel in the early game.
Do you actually know what are you talking about?
(1) If Assgren is for flanking, why don't I do with anything else? but do with a 1.5 expensive unit and decrease my early unit count?
(2) If Assgren is for taking out weapon teams, why don't I do with PG, which can do the job 10 times better and faster, but locking myself into a doctrine and gambling opening?
(3) You say "they were unsupported and constantly moving", so at this stage of game can Ostheer having any support for this two Assgrens? Are you suggesting they need support before attacking anything? Funny, cons has taken half of the map already. Isn't their role is to jump on their enemy and shoot at their face? Their MP40 were complete useless out of short range.