A quick PSA from the translating room of FlameOf:
Take Comics, the site that hosts the raws for Senki Kanshoku Symphogear ~Shirabemeshi~ has started pay-gating the latest chapters, with the free to read chapters now being chapters 1 and 2, and the chapter from last month.
I am stating all this...
If by that, you mean the moment Kanade used her Superb Song and burned her life away to save Hibiki's life, then yes; this movie they made really did just make light of one of Tsubasa's greatest traumas.
Well, you see, the thing about that is that 'I don't know'. Pterosaur could be a mistranslation on my part, referring to Sylphid or even the Winged People (in fact, I only just recently discovered that Silvered Tongue has a full translation of the LN, where this arc is 'Tabitha and the WingMen)...