I disagree. Mask of Light was what got me into the series and I never heard of Bionicle before watching it (granted, the dubbed version is much better than the original, as I explained in this topic), and given the fact that I’m on this forum 17 years later, I’d say it did a pretty good job at introducing me to the franchise 
(and it’s pretty decent as far as direct-to-DVD kid movies go)
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