I don't think she ever stopped doing porn, her performance was just better with other partners than her husband. She was (still is, l suppose) such an enthusiastic performer, taking pleasure in giving pleasure. Sure, maybe she was just acting, but the effect is still arousing. But l think she really does enjoy pleasing her partners, sometimes even at some inconvenience to herself, like when she performs deep throat to the root, holding until she chokes and gags. And l really appreciate her using her huge boobs to arouse and please (she pleases butt fans too, though that's of less interest to me).
Here's the original screencap of that morph l just posted, you can see I didn't add all that much 
I guess we are in agreement, there is just something inside Allegra that likes showing herself being used for sex. She is a bit of an enigma in ways that I would not say are a result of cognitive dissonance, but of extreme desires; loving family oriented mother and piano teacher while dressing in ways to always draw attention to her boobs and butt, and then the propensity to carry that a step further with videos suggesting uncontrolled sexual desires. Maybe they are all the real Allegra because, as I noted, her business ventures outside of porn are already impressive as is her California mansion.