I don't think that the newest addition to farspawn was necessary as the text in LoM describing aberrant feats specifically states that feats with cumulative effects for having aberrant feats increase as you gain more aberrant feats.
Also, I think that my wording also worked considering that if you would take it twice, both would count as "starspawn" (the reason I didn't use the words "each other aberrant feat") and thus not give you bonuses for having the other. Then again, your wording is a bit more clear so no real complaints there.
Also, is it really necessary to redeem waterspawn for points?
Water breathing, cold resistance, and early access to fins seems like a nice deal by itself so I couldn't imagine trading it in for too much (and certainly not as much as deepspawn, where you're trading in the entire benefit of the feat).