Just to clarify, I'm not blaming the customers for not buying Manga's BDs either. People are entitled to import, like I did for those first two FMA Blu-rays, and people are entitled to go for the cheaper option or simply not be interested. It's just one of those things.
I take the point about Manga raising and dashing hope, which inevitably leads to a lack of faith in them, but I do believe Manga set out with the intention of releasing on BD everything they said they would. In any case, I don't think Manga will making any rash promises in future; anime on BD in the UK is dead outside of theatrical movies or other one-offs.