I definitely think the control in v0.9 is simpler and more friendly for new users, and it feels like an update the developers put a lot of thought into. On the other hand, when I first encountered the Alt control in v0.8, it seemed a bit cumbersome at first. However, once I got used to it, it allowed for much faster inputs and became quite comfortable to use (of course, I reassigned the Alt key to another shortcut that’s easier on my hand — personally, I replaced it with a mouse thumb button).
So what I want to say is this: I think the new control is a good direction for the game’s development. That said, since this is still a test build, it’s inevitable that there are many areas that need improvement. For example, the E key has different actions assigned to click and hold, but the input detection often confuses the two, causing noticeable hiccups. Also, sometimes the Shift + E combination doesn’t get recognized properly in a single input.
However, considering that the developers likely have many other aspects of development to focus on at this stage, I think improving the new control should be a higher priority than adding an option to revert to the old control.