You must lie down to extinguish yourself

[kyle2143]

This is a very reasonable point. To explain why it currently is this way: Before blocking existed, resist used to work basically the way you describe, you had to click rest before resisting to stop-drop-and-roll. And we didn't like this because new players would often be confused by it, trying to stop-drop-and-roll, by clicking resist, but not realizing they had to also be lying down first. So we decided to make it function more in line with player expectations.

But now that Blocking is attached to the input for Resisting, it's clear that this is a problem where one input causes two very different things contextually when you might not want one over the other.

I think the ideal solution would be to separate the key input for BLOCK from the input for RESIST. I couldn't say what key would make the best default for various keybind settings.