Supply and demand. I just hope it doesn't see the same fate as Krav Maga or BJJ. This is just my personal experience, but since its popularity (movies, tv, news) people have been wanting to learn it, so McDojos are learning (from seminars or where ever) to teach it, wether they have the desire to or not.
I already see an increase in the film industry not only using FMA but giving FMA credit. You'll hear stars like Lucy Lue Mat Damon, and others say they train so many months in FMA to prepare for the role...its becoming mainstream. You then have lay people watching thier Action movies and say "thats cool, I want to learn that", where do they go from there? They go to the dojo next to the supermarket and ask them if they teach it.
:soapbox: