It's not terrifically surprising that current model MFB lost to a DGMSUV... Grip Flat Ultimate Mode is a brutal piece (still need to get my hands on one). Personally, I don't like setting the performance bar at WBMS, as that one was so obscenely overpowered straight out of the box.
As it stands right now, yes, HMS as a set are superior. Far more customization capabilities, a very diverse range of parts, many of which are very advanced in design. However, I feel it is unfair to judge the entire set of MFB as a failure based upon the initial releases. Remember, this is an entirely new design, put out by a company that's gone through a lot of changes since Beyblades were last made. Hell, the Tomy name is FAR more prominent on these parts than the Takara name. Give 'em more time. We're already seeing a part with a unique gimmick in Wolf, coming out later this month. I strongly suspect we'll be seeing a lot of variations on the Track and Bottom in later releases.
Flash Leopold, UK Superhero, you know where I'm going with this by now...