Aye that's about what i've read in the past day or so regarding MB (I knew they did hentai and la under other labels but can never remember which studio has what labels).
I think looking back over the last year or so the boss at MB has seen something like this possibly coming, as from memory they now have an anime related store as well (and I think used to do DVD/vhs rental of obscure titles if I'm thinking of the right DVD adverts), so have tried to diversify as much as possible so they don't have all their eggs in the one basket, doing on a smaller scale what TRSI have long since done, and MVM do here.