Oh, certainly the fact that it's her culture and not his culture has a high influence on his opinion of their primitive weapons. (And there are some people where he's from who think blasters are unrefined. They're misinformed, clearly.)

Han's egocentric viewpoint tends to make all the things he knows and is familiar with 'the best' which she has probably noticed by now.

Also, he still thinks her place is weird when she talks about it, he just realizes how much of a jerk he sounds like when he says it outloud.

"Mutants," he begins, drawing back to what she said earlier, "are the people who have powers, right?"