Well, I guess that would be the third interpretation for that sentence and that's exactly why I didn't quite get its meaning. I was just throwing a couple of random guesses there, which does not mean that I believe in any of them.
My hope is though, that they meant the easy modability with that statement.
And while I agree with you that working with some mod-members would certainly benefit the game, I think there are better ways to communicate a mod-maker beta-test than hiding it in such cryptic lines.

Cheers!

Ituralde