Unity in numbers!  May their be a groundswell for priests elsewhere to come out in numbers.  The RCC is skillful in taking down solo priests who speak out as in the pathetic instance of the  Vatican's response to the 90+ yr Jesuit who came out for women's ordination.
Unfortunately, most clerics are wimps.  They are v. fearful of voicing their real thinking lest they be blackballed by bishop & fellow clerics. 
Remember, those who enter seminaries are among the most conservative, reactionary of RC males.
Not easy for this group to grasp reality as seminaries only reinforce indoctrination.  There is no critical thinking in RCC seminaries. 
Will be interesting backlash against German priests, if any.  Vatican more fearful of attacking a group of clerics.  Makes for great media coverage.  Is this the "New Evangelization" the RCC wants?  To suppress freedom of thought? And to punish persons?  Unfortunately, the RCC tradition consistently has been punitive toward such.