Well I guess belly dance workouts are nothing new, plenty of DVDs and my teacher has a workout class so I won't throw stones very hard....
... but my reaction was pretty much the same as Janaki's.
It's specifying raks sharki that gives it the
factor for me (maybe this is a language thing?). Bellyrobics or some such, you know what to expect - aerobics in a hipscarf to some vaguely ME sounding music with a few "bellydance" moves thrown in. Not saying it's right by any means, but I don't think it pretends to be anything more than Jane Fonda plus hip drops. You gotta have a gimmick, as they say...
But saying raks sharki, and specifying traditional Egyptian dance... how does that sit with fat burning and gymnastics? Sorry, fusion from hell IMHO.