I'm sure that, like everything else, the character models are still being worked on. Yes I agree that some of the options are limited.

BUT.
Halsin is an example of a more buff male body model - it stands to reason that the male PC model will have this option as well?
Also if you look at datamining videos, it does seem like they are working on a variety of character and body models and heights/sizes.

Hang in there, you might be able to play Arnold Shwarzenegger yet. :P