Much agreed, I've occasionally had a bug where the right click menu on a ship in the map list has disappeared, and simply right clicking has caused me to enter that ship.
I much prefer it when that happens.
As the options are:
Focus - (Can be achieved with a double click or pressing space)
Switch to ship - (Most Used)
Switch to sector - (Is this ever used here?)
I'm all in favor of a quicker ship switching.
I'd propose:
[Single click + T] = Switch to ship (Consistent with sector map controls)
[Single click + Space] = Focus (Consistent with sector map controls)
[Double click] = Focus
"Switch to sector" removed here.