That would be great! I think feedback during a PTR has two sides.
We test things and, ideally, state our view on given updates, changes and improvements (hopefully) - what’s good, what’s bad and where we see room for improvement. At that point we can only hope it will be noticed.
Some Feedback from the team would also be appreciated. Of course not on every little detail, but changes with really huge (i.e. negative) consequences to existing builds deserve a word or two from the team as to why they decided on what they did.
As Venaliter mentioned, we all like this game, some are playing it for years now and we really want to help in making it even better.