Guess I'm going to be another vote twords the "I don't think that was intended category."
Personally, I don't really know if businesses would ever "want" to put a penis on a doll of any kind. I mean, Ken dolls never had them as far as I know. Maybe I'm wrong, idk. The boy dolls my sister had never had one, and they where actual dudes, so why would now they add one because of being trans. Seems weird to me.
And at most, if a penis was intended on these dolls, it's not going to make children question their sexuality. It may actually instead show kids at a young age that "some girls have penises, get used to it." But if that kid isn't born anything other than a normal heterosexual, chances are the kid isn't going to change genders or sexual orientations, especially just from seeing a penis on a doll. Some people just really need to stop worrying so much over things that aren't really that big of a deal.