TL;DR - I wouldn't put any money on the changes being reverted
We're OK with some people being unhappy with change. It happens. The product is provided as-is, and for free. If we have made a decision to go in a certain direction, it's because that's the direction we want to go in, if a few feathers are ruffled in the process, then that is just the cost of change.
A handful of people needing to adjust their workflow (like... just login, the information is all there. Use a password manager and you don't even have to type your password), in my own honest opinion, does not constitute a pressing need to reverse a decision we have made. As I've said elsewhere, the vast majority of users either don't care or are happy with it - I know this because otherwise the amount of negative feedback would be overwhelming, and because people generally don't complain when they are happy.
Feature requests are one thing, but we are under no obligation to implement them - even if they are seemingly popular.
There are alternative ways to view the information you wish to via the API- and certainly alternative apps (there are both android and iPhone 3rd party Pi-hole management apps)
The next major version Pi-hole (known as v6.0) will feature a much richer API
Nevertheless feedback is always appreciated, it helps us gauge things, and perhaps we ourselves need to learn to be more upfront with our explanations in the first place.