Kind of a strange decision. The creator specifically withheld engine information because he wanted people to talk about the game on its own merits, but it seems like waiting until now to talk about it and also attempting to pass it off as its own thing (even calling it the "Metru engine" despite not having designed a single piece of it) have created more trouble for him.
If he had said so from the beginning, there might have been less backlash. If he made his intentions clear that the engine didn't matter to him and he wanted people to take the game for what it is, then that should have been done from the start.
It just seems strange to me that he's really expecting people to download another game just to play his. I actually have a battle.net account, and even I don't want to download a game I won't ever play just to play Bionicle. Just seems like a really awkward process, especially after it was hyped up so much.
I'm less bummed about the multiplayer thing, probably because I didn't really have much intention to actually play the game myself, but it does seem odd to me that Crainey feels like it doesn't fit the atmosphere. I think a major component of the first year of Bionicle was all 6 Toa being together, teaming up to find masks. Unity is a core of the series, after all. So why, if the system already works, does he not want to just put it in? Doesn't really diminish the experience of the single player if that experience still exists.
If he wants to shift gears to focus on the singleplayer, then he should do that. Multiplayer should come second, not simultaneously.
Not to mention the easy answer to the "5 Tahus on the beach" issue is to just allow only one of each Toa per group. Yea, it might suck a little for the player who wanted to be Tahu, but it's a possible trade-off for keeping the atmosphere intact.
Also, this totally explains my questions about the multiplayer aspect and the servers. He can support multiplayer because it's actually running off Blizzard's servers, not his own. It all makes sense now, and probably should have clued us in on what engine he was using.