I will say that my frogspawn looked just like that for the longest time, then, I changed lighting, (and number of other things, like tank and flow :)) and what was sold to me as a single head, $10 torch coral now started looking like a frogspawn.
I will say that for months, there were no branching tips then one day they started branching, and it turned into your typical looking frogspawn, without question.
I will say that this is deff just my $0.02/ experience, and that I would agree that it could also be Cristata.
Hands down its either an not so happy Frogspawn or a Cristata (IMO).