Your question “As I’m new in this sphere, I’m wondering how probable it is that apple will roll back this «feature», or if it’s more likely that they’ll keep pushing everyone into submission” asks for speculation as to the likelihood of Apple changing this feature.
First, being new to Apple, you perhaps need to understand that the Apple Support Community (ASC) is a user-to-user technical forum. Other than the Site Moderators, that ensure that contributors abide by the Terms of Use (ToU) that govern participation, Apple neither monitor not participate within the Community.
Contributors here are all end-users, just like you. We have absolutely no insight into Apple’s future product development or release programmes beyond information that has been publicly released by Apple. Speculation is pointless - and in many cases disallowed by the ToU.
Returning to your question - as to “rolling” back Dynamic Volume controls - there is nothing to “roll back”. Older iPad models with fixed controls had this feature introduced as an optional feature that could be enabled where desired. For newer models (listed above), fixed controls have never been present - dynamic controls being the only available choice.
As already outlined, Apple do invite feedback and feature requests. If sufficient requests are received, Apple may choose to make changes.