You've been explained a number of times already so let's chew it down: people get frustrated, give up on SRB2 and end up with a bad impression of it because the default controls are not as friendly and when they try analog with hopes that it controls better it fails miserably. Yes, there are people who think it works better, like you, but people who didn't like it most certainly would think SRB2 is poorly made, and they greatly outnumber bonafide analog users according to research, so much that that's why in addition to directionchar and a tutorial to help you learn the controls, they're removing analog accessibility so that people don't immediately run to it and learn better, in an attempt to mitigate that evasion rate.
It's not an unnecessary change, the devs took this decision based on research and the fact that you can easily retoggle it makes hitting this button again border on the petty.