I don't see your point really. The success and quality of a toyline needn't be dependent on the quality of the TV series - look at Energon and Cybertron.

Surely as a Beast Wars fan you'd rather have a mediocre television series and an entire toyline than two mediocre toys in a filler line, like we've already had?

Also, re the Megatron and Prime molds that got redecoed in Cybertron, during the design process there was still uncertainty surrounding the 10th Anniversary line so they made them compatible with Cybertron's key gimmick as well, just in case the worst case scenario came to pass.