The developers also read through the forums themselves, so it'd be hard (pretty much impossible) for the CCM's/CM's to blind the developers to particular concerns raised by the player base.The problem with the current feedback system to developers is it is being decided by the CM team who will be biased by their own experiences in the game and their guilds. Quite often these are high ranking players who may not see the problems lower ranking players/guilds face.
The CCM's/CM's may have their own opinions about the delete button, however the decision to not reinstate it came from Inno. At this point in time Inno doesn't want to make it possible to delete defensive armies, probably because new things they are working on will render bring it back pointless (unfortunately I can't be sure).I have been amazed at how the delete button being returned has been dismissed completely although many on this post called for it be reinstated. Are Inno unable to admit to making a mistake. Do they lack the humility to do so or is it that the CoM team do not want it returned. We can never know as players because Inno do not engage with us directly.
Shocking really how little credence they give to their customers.
With regards to the delete function that was removed, it would seem to me that other solutions can be found for the problems caused by removing it. For example an idea to enable the release of the HQ when it is the last sector of a province would most likely gain support from lots of players and could be accepted by the devs. There are other problems of course but the HQ thing was just the first thing that came to mind.