Oh, the lure of the off topic debate.
Beast Wars' connection to G1 is part of its fiction, and came later in that to boot. But I am not overly interested in the fictional connections, but more so in the design and development of the Beast Wars brand.
From a developmental standpoint it was the first hard reboot of the Transformers franchise, with Hasbro handing the ailing brand to the newly acquired Kenner. They took the toyline into a new direction, which offended many older fans. Obviously this outrage subsided and would be hard to maintain, since Transformers these days reboots every other month or so.
Which brings me neatly back to the actual topic:
The only connection I am trying to draw between the ire Beast Wars initially sparked and the current dissatisfaction displayed by some Bionicle fans, is that any change of direction in a passionately beloved childhood property will result in the gnashing of teeth, which will over time be ameliorated and eventually subside entirely, as demonstrated in another brand that DecepticonWarrior apparently favors.