I call these debate drift. I think it is more commonly called 'derailment.'
The written language is insufficient to properly convey broad and complex ideas. We write snippets. What we think as we write and what comes out might not match, but is close.
Another mind, defending an opposing idea, will focus on a part we paid little attention to. We then must defend that portion, which shifts the context of the discussion.
Interestingly, this thread splintered off of another where @vic drew attention to something I had worded poorly, being too brief with a more complex topic. My wording gave an impression that was highly inaccurate.
If I take ownership of my poor wording, it can be clarified quickly.
But if I tried to defend the post as I poorly worded it, drift would accelerate.
Badly.
To me, it seems likely that as you expressed a thought; intended meaning was lost.
This pulled you into a direction of defending something you had not intended.
My rebuttal might be valid in the context of the snippets I quoted; this does not mean that the wording I quoted truly reflects your perceptions.
I think that an End User that criticizes a change in a product line that they believe will reduce its efficacy, which you and I both have done - is feedback.
I think that believing in developer freedom to explore their product line is a principle.
If they can coexist is dependent on whether one conflicts with the other. If there is a conflict - that can indicate a deeper question that needs an answer before proceeding.
Summary
My son and I had this discussion the other day. He has a friend who is "different" from many people. I won't say what makes this person different. Only that it is how they are biologically.
Another of my sons friend admitted discomfort being in the presence of this friend.
What I told my son is, when you feel that uncomfortable conflict, even if not sure why, that is your alert that there is something inside of you that you must examine. Asking the hard questions, facing the hard truths.
Because it usually means you have a bias you need to manage. The only way to manage it... is to admit it, then interrogate it.