I can see how that's a reasonable preference. Though I fall in @OjFord's camp. I have a mouse scroll wheel and I'm not afraid to use it. But... I have to remember to hit return a few times beforehand because it's sometimes hard to find the top of help when you're scrolling up in the terminal.
And if your brain is wired for vi, then that makes complete sense.
But... the cool thing about using the scrollwheel to scroll up to see the --help output is it's always there. If you pipe it into less, it disappears as soon as you exit less. So if you're writing a big, beefy command with lots of unfamiliar options, you can start typing down at the prompt and then scroll up to read the help output. It's annoying when you type that you immediately scroll back down to the bottom of the terminal buffer, and I think all terminal emulators default to doing this, but maybe it's a configurable behaviour.
This also works with `man <command> | cat`.
Also... how many times have I had to type out `git branch -a | cat` and tried to remember to put the `| cat` in it. I HATE that the stock git cli automagically pipes to /usr/bin/pager. If I wanted to pipe the output to /usr/bin/pager, I would type `command | /usr/bin/pager`. But now I'm just kvetching.