Hey there! This is amazing feedback! I'm glad you enjoyed your time playing
I must applaud you for your observations - we actually planned on adding dashes and other abilities like double-jump when coming up with the idea, but we had to cut a lot of those corners because of time. Our initial idea was that enemies could come equipped with both a weapon and some sort of powerup or ability, and you would get a copy of both (so you can imagine you would be really scouting for enemies that have cool loadouts, and that way you could be looking at a lot of sick combinations - picture having flight and a shotgun xD).
Though having those skills innate to the player does also sound like a cool concept - while discussing the future of the game, we though it could be a cool idea to add some sort of powerup system that lets you start each run with different abilities, so your suggestion highly resonates with that, and having the ability to swap weapons instead of just copying could be one of those bonus effects. Cool idea!
Again, thanks for playing and for the detailed feedback! If we do end up releasing a more developed version of the game, we hope you get to enjoy it again!