I totally agree with this idea. It would save me a key press every time I used the bank.
(Also, I know it's not the same topic, but it kind of is (another nice, small change that would make the game better IMO). I wish that when you use the key bind for skills (default 'K') while in space, it would open up your Captain's skill tab, not your ship's (which doesn't exist, anyhow). It's not a huge deal, but, for me, it does get annoying.)