Whether notice or not, I believe its the photographer to make it work.

The purpose of the camera and the photographer is to get the shot. Not to gain others respect by wielding a big camera around.

Final results matter

  come on lah. I don't own dslr but I did use them before. I know the picture quality is on par between mirrorless and dslr. But different cameras have their own place and purpose.

You can't tell a client that you will be using RX100 mkIII for the wedding shoot, otherwise you get the boot. A6000 paired with big ass lens may get attention but TS is not buying camera for the purpose of using different lens.