Wasn't it confirmed that Cridea and co were written out, though? And it seems kind of unfair to introduce all these characters, get us speculating about them, and then go "surprise, we're going to pull this entirely new character and THEY'RE the only really important one!" There's a writing rule my friend came up with; "'I didn't see that coming' is good, whereas 'I couldn't possibly have seen that coming' is not".

We literally don’t know what’s going to happen in Act 2, and we’re travelling somewhere to meet the Grubbles’ fan, which may not even be anyone in the Troll Call, this is could easily be a transitory Act leading to meeting up with the important figures, you can’t consider ‘what we couldn’t have possible seen coming’ as a rule at this point because we literally have no clue of where the story’s going at this point, even with the Troll Call Trolls. 

Also the ones written out were the ones with 3D models, as they were Fantrolls of the prior team, no idea if Cridea and Fiamet were also written off. And while Cridea and Fiamet themselves MAY have been written out, their role is still very much there for a Violet and a Lime. Until we have more confirmation of their fate, why not use their names just the same to identify said roles?