Look.at the changes before you start knocking team associated, that you bought for 25 years. Seems you pretty much like them. Changes, are waterfall area more flex, which people elimated to gain certain amount of flex. Shock position in rear, you can move to rear now, unlike b5m. Steering bellcrank, improved. Better battery stap. Two types of transmission. One for different surfaces. Adjustable casters and hubs. Slots for weights, narrow towers (dirt). These changes were needed to be more competitive on certain surfaces. Looks like they did their homework. B5M is great for for club lvl. Those that can't afford b6d will be able to afford b5m and still have fun.
All that Rambling about the new car but you don't even know what changes was made to make it even better. Yes, you don't need it if your starting out but it's what people complained about . They wanted these changes. Average Joe like me , don't need but it's nice to see the problems fixed that they had with first mid motor. Losi did it, other companies did it. Seriously. Someone that has nothing better to do than make a mockery of a company that he loved for 25 years.