So the overwhelming consensus seems to be that the combination is not overpowered, with quite a lot of extra arguing over 'word games' and semantics.
Ofcourse it's not ffs.
If anything, COH2 is as close to "efficient" as possible, meaning there are no unknown or groundbreaking tactics that "break" the balance.
Sure, you can spam Paths here, and MAYBE in some maps get really good results with spamming PFussies. Same with here, MAYBE the UC + RERS + RERS combo can work in some circumstances. Is it balancebraking though? Absolutely not.
If it was, it would have been the norm years ago.
I hope someone can remember the true days of "broken" faction design, where OKW could have Luchs by 10 min mark, Clown-Snipers etc.