I guess I concur.

To me, it's just standard policy to go over any contract that you have to sign with a fine-toothed comb and the best lawyer you can afford.
That said, no one should be too surprised that publishers are now negotiating electronic rights from the get-go. I don't really see much of a reason for royalties on ebooks to be differentiated from paper, either.
Don't the standard rate for paper book royalties start at 10%, though? And isn't Carina more like a self-publishing project than an edited publishing house?