I agree that crouching to grab the money is a little annoying, I like it as an extra task to fill space! In between navigating the level and fighting the enemies, we don't have a lot extra for you to do. No health potion to drink, no background elements to break, no dashes to chain. Interacting with the currency is a cheap way for us to ask you to touch an extra button on your keyboard and break up your movement! That's my reasoning at least, I think it's funny for the runtime of the game. But it's definitely less practical in a larger scale project.
Thanks for playing!