Hello, thanks for all the feedback!
"A video checkbox for "Full-screen" would be nice so I don't have to keep pressing Alt+Enter every time I start the game.
A mouse-lock option so that you can't accidentally click into another monitor outside of the game window would be good."
Both of these options exist, the first is in the Video menu and the second in the Controls menu.
The increasing cost of mid-mission landing is to disincentivize hyper-optimal playstyles where you might change loadouts constantly but bog down the pace of the game. I wanted to just remove the mid-mission landing entirely but at the time (in beta I think) it seemed to be a popular feature.
I've taken everything else into consideration and made some to-do items. Some suggestions have already been made by other players. Thanks again for the feedback!