Callan also says some crap about it lacking Bionicle iconography? Or I guess early G1 iconography, but even that is nonsense. You have the canisters, the beach, you have two different depictions of Mata Nui for crying out loud, and a Bohrok now too.
I do agree that this set doesn't really mean much to somebody who isn't already invested in the franchise, but honestly: I couldn't give a fig. This is a moment for us, the fans, to get a bit of closure. This might be the last Bionicle set ever - why not just let it be fanservice?
In an ideal world, obviously I wish there could be some constraction in there, but Lego isn't even making those pieces at the moment, so... bleh.
Also, maybe this is an unpopular opinion, but I think the grumblebricks set looks like utter crap. I like the concept of it being more like a traditional set with Bionicle iconography, and that's about it. I enjoyed the hero factory figures we got in invasion from below, but they look like garbage here, especially for the characters they're representing. There's also no real unifying theme in the set, it just feels like a lot of random ideas slapped together, and it's frustrating because there are so many great locations you could take inspiration from in a set like this and instead of utilising any of them he just creates this weird hodgepodge of a bunch of different concepts. Excuse the mini-rant, but their little aside praising that one over Sokoda's really tilted me for a lot of reasons I just stated