Only reason for not wanting camera I can think of is your job demanding not to have one. Or is there something else?
Price wise I can't see it making any difference as it mostly just brings added costs on manufacturing as long as the demand is limited.

You also got a think does Jolla even wanna release phone without camera. It's a important sensor and Jolla might wanna see its phones having some kind of hardware parity, so they all start from the same page, and see that all of their work around software related to camera ends to all of their phones.