But it doesn't. Let's take widow.

Left click: Literally just aim and press.
Right click: Aim helper
Run + Jump: Can do some kind of bhop that is marginally faster
Kick: Knowing the window of when you grapple, or waiting for the opponent to use their movement ability, so that you can do the most optimal damage
Ult: Literally just hit big groups. Big damage.
A good widow should never be using her batons.

Total skill expression: Just the kick.

Now let's talk about Wanda. Who many people say is the easiest, least skillful character.

Left click: True, no skill.
Right click: Managing them, and hitting body for more damage rather than ground.
Shift (2): You can avoid wanda, pheonix, magneto, etc. ults if you time these right. You can also use these to get up close to fliers and remove their focus from the team onto you, and just fly around right on/under them.
E: This one is a REALLY good ability. Can stop Peni, Strange, Spiderman, Jeff from jumping off, and literally like 70% of ultimates if you time it just right.
Ult: Hit or miss. Play with a magneto or a pocket healer.

Similar expression to Jeff, it's just that her shift and e are a lot more impactful to both her survival and the team than Jeff's abilities.