This might not be an issue for many people, so maybe it wont matter enough to change; but I thought I would just post it anyway and see.
When GW2 resets for a new build (or when you open it the first time to play) it automatically comes to the front and auto focuses the password field. If you’re using PTT (for VoIP) it will automatically start typing your PTT character into the password field.
I’m just suggesting that if the remember account name and remember password fields are selected the launcher does not auto focus either of their respective text fields.