They're Obers without the LMG though. Are they that much better than PGrens in that state?
I'd be more concerned about the Obers already being Vet 2 when the LMG unlocks.
If they ever had LMG locked behind different tier then they are, you'd see the REEE about their cost efficiency about 8 seconds after someone built them.
They are priced as they are, so the cost is split between 2 resources instead of massive MP dump they were in the past, they aren't balanced nor supposed to work without upgrade.