It's become an absolute meme on the left-leaning internet to say SpaceX isn't Elon and Shotwell is doing all the work. You can't go to a thread on this site or reddit etc without it being brought up.

Really I am pretty sure it is just coping to deal with the uncomfortable fact that Elon (bad guy) is doing something great and clearly is skilled. Ask anyone at SpaceX or Shotwell herself and they will all say Elon is very important to its success.