When I ripped my MFSL and DCC discs a couple of years ago, almost all where in the accurp database. As I remember most had around 8 or 10 matches. I have about a hundred MFSL discs and I don't remember there being any that didn't have at least a few matches.
I don't have that many Japanese disc so I can say how many matches there might be. But accurip information is collected from around the world. And there are a lot of Audiophiles in Japan.
I always considered EAC to be pretty straight forward. Once it is set up. All you have to do is choose select all then test and copy. But I am a bit of a computer geek.