Ok I think I figured out why she is shooting almost no hardcore scenes. She seems to only be accepting b/g bookings through her website. Which means she is basically self representing herself, which has never really worked for any performer. Even for a softcore queen who owns her own paysite and businesses, that will not work. As a result, she basically has no name recognition in the hardcore world. That may seem crazy for Akira fans like us, but it appears to be true. I saw a twitter conversation where mimefreak didnt seem to know who she was. She does have a profile at 101 modeling, but she is only listed as solo and g/g there and you cant find her profile in their index. You need a direct link to it. If she is serious about wanting to shoot b/g scenes, she will have to join a talent agency, otherwise we will not see her in anything else.
If she really wants to shoot a high volume amount of b/g scenes, she can. She probably doesn't see the need to establish herself as b/g fixture. She can be selective. But let's be honest, if she wants to be filmed being fucked by a guy, no one is going to turn her down. It's just a matter of money.
As much as you or her other fans may want her to be b/g all star, it's really up to her and what she feels she wants to do.