>>10233884from an interview with faber:
https://stonewars.com/things-to-know/interview-with-former-creative-director-christian-faber/there are other examples out there but you'll have to find them yourself instead of being spoonfed. it's pretty much common knowledge though, and why else do you think the toa metru look nothing like the turaga, the mahri don't look like the inika, or phantoka like the nuva? it's a toy first and foremost. making cool and unique characters that kids want to play with comes before story.