I also don't think Xenoglossia was that bad, although it definitely wasn't what I was looking for in an Idolmaster anime (Not like that OVA was better though). It would've been better as a standalone, separated from Idolmaster, but being connected made it worse. Like Haruka saying her favourite colour was pink, the voice actors being different, and most characters having odd redesigns and character traits. They killed Takane's home too.
My favourite thing about it is that it spawned 'inferno', or at least I'm assuming that's why Yukiho and Chihaya got a duet in a song that seems like it should be in Xenoglossia.
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In other news, Puchimasu could have a chance.