So why do it?

I'll do it your way...

...huh?

I was replying to this comment:

Again, no it doesn't. The button should always be in the exact same position, relative to your thumb.

Are you seriously telling me you never reposition your hands on the steering wheel?

You are bad at reading. Try again.

This is total nonsense:

If you're turning that sharply, you're not going to need turn signals.

Ever heard about U-turns? You need to signal while doing those too. That's just one example that disputes your position.