Yes, those are shinier than the factories did them, but better looking.
An argument can be made that nowadays, people expect them shiny, and I get that.
I've usually painted engines with cans, and over a thoroughly clean & primed engine, they've held up fine for 30+ years.
They all look recently done, but I keep them clean.
I've also used the Bill Hirsch stuff, and it was excellent.
So, whatever you like and are equipped to do, I guess.
It's one of those debates that will go on forever.