Not really. The narrative clearly emphasized their emotional connection as student and teacher. Luke has displayed an intense emotional reaction to his death, obviously being very distressed by it. Emotional bonds aren't a math equation where you plug in certain actions and out pops affection. Leia didn't react to his death, so I assume they weren't close. Luke did, and we saw their relationship, however brief, first hand, and we know he cared a lot about him, and then he still hung around him afterwards as a ghost, so their relationship continued post death.
We were shown Luke and Ben's bond. In contrast, Ben just did Leia some huge favors, which she appreciates, but she doesn't seem to be close to him in particular.
True, but then she'd probably have named him Obi-wan, since that was his actual name, and Ben is personal affectation of that name...or maybe she did, and they used the same affectation. *shrug*
My point is that there doesn't seem to be a strong reason for her to name her kid Ben. If you're point is that people just name their kids after some trivial stuff, like Obiwan being a random warhero of a war that must have hundreds of them, that's fine. I just found it sort of pointless.