Midwesterner: To start, there are clearly 2 types of Ayin Hara. One is the more “rational” type, and the other is the more “mystical” type. The rational type comes from showing off and such, which may cause someone to Daven against you (as R’ Schachter explained) or even for HKBH to be more Medakdek with you (similar to the bad type of Iyun Tefillah). By this there’s no reason for mystical fixes nor is it Shayach to say Man Dikapid…
But for a mystical type of Ayin Harah, which affects someone arbitrarily/Ba’al Korcho/however, it might make sense to say. I agree that it probably can’t be definitive, though I seem to recall a T’shuvah or a late Rishon (maybe it was a Maharam AlAshkar?) who applied it to more than just Zugos. I’d have to look at it again. I will be Modeh, however, that it’s clear from another Gemara around there that Man Dikapid… doesn’t apply to Keshafim. So I don’t know if Ayin Hara is more similar to Keshafim or Zugos or neither. I guess we’d need to look up precisely what causes the “mystical” Ayin Hara and what precisely causes Keshafim.