The whole "just adapt" thing is not an acceptable solution I'm afraid. The controls don't make sense, there's too many irregularities and weird stuff going on.
Apart from all of the things thats already been well documented in the various threads over the last few days re: keybinding, consider this:
There are a number of actions on the PC version of Fallout 4 that are consolidated into one keystroke. For example, melee and grenade both share a key, as do holster and reload. There are more too, and I'm sure you all know them. The reason for this is because Fallout 4 is a console port. There's only so many buttons on a console controller, so actions had to be consolidated. A short tap elicits one action, and a press and hold elicits another. When Fallout 4 was ported from the console to the PC, these console features were not stripped out, they remained. Even though there's more than enough keys on the keyboard to accomodate them all, the PC version still has the control features of the consoles.
That's just one irregularity out of many, but it shows how little attention was paid to the pc port. While I can completely accept the fact that some people are fine with its current condition, some of us are not. And from what I've seen we've always used evidence to support our complaints. "Just adapt" is a weak rebuttal, and it doesn't work.