Probably pulled them off and painted them themselves, saves cost vs having a shop do it. However a shop will prolly have access to higher quality paint, so it's up to you.
Not digging the reverse Nismo stickers on the skirts, but I do like the color red the wheels are.
I agree on the wheels!
Plasti-dip would be okay, accept that your handles are going to catch some road debris and get scrapes. Also when you go to use your handles, you will inherently rub them to the point the plasti-dip will start to come off on it's own. Best to just paint them the first time if you're going to do it.
Chris makes a good point here OP. I plastidipped my handles ~3 months ago, and have already had to respray them from it wearing off.