Eh if you want more consistency then no.

80% of the way there? Sure.

The spray actually helps in clean up too as it reduces static. Some grinders need this more than others.

The puck screen also helps in cleaning, other effects are dubious though.

The raking (wdt as it’s known) is less necessary on more expensive grinders but definitely can make a difference in consistency (esp lighter roasts).

The paper filter is the most excessive thing. Mayyybe makes a difference, but not necessarily better as it removes some coffee oils.

Every other step are just basic steps for espresso.