Your only hope to get these fixed is to post the petition to the community and hope that community fixes these...

There is _zero_ Harmattan R&D people still in Nokia to fix any bugs (they all have been fired quite a while ago), nobody has even read harmattan bugzilla since january 2012. If there are any subcontactors left, they will only fix critical security releated bugs, like if some easy to use sim unlock exploit get released then there is a small change that it will be looked into. (Although even that might be ignored, since TMO already had a thread of how to bruteforce calculate the sim unlock code, and that hole was just ignored).