Having spent some time exploring now, I have to say that the Piramides do seem to be biased towards cursing the pets. So far, I only got one blessing and about ten curses. Of course, it could be just my rotten luck at work there...
And while the whole breeding programme is a great idea, I do believe I'll keep all my females well away from it. Raising a girl all the way up to level 50 only to get her knocked up by a lousy level 2 male with more red genes than I can ruffle my feathers at... Not fun. Not fun at all.
So, while it initially seems like a really cool idea, I don't think it'll be really popular in the long run.