Destiny's on-stream response to the filing really encapsulates who he is as a person. It's clear he was under some pressure to immediately respond because the filing makes him look bad, but he doesn't really have much to say on the substance of any of it, so he primarily just reads the filing in a silly voice, focuses on single words he doesn't like, and picks needless little battles with small and irrelevant things in the filings (at one point, he points out a subject-verb disagreement because he's so desperate for any win he can get; at another point, and this genuinely made me laugh, he started to poke fun at Pxie's lawyer filing her own declaration, until he immediately realized, in real time, that his OWN attorney filed a similar declaration). And this is how he has always been; if he doesn't know the substance, or doesn't think he can win on the substance, he just pivots to any other point where he thinks he has the high ground, even if its largely irrelevant or silly.
And just to briefly address something. Destiny's latest cope appears to be that, because the new evidence was not mentioned in the complaint, it is somehow invalid. Federal rules allow plaintiffs to move to amend their complaint at virtually any point, and the specific scheduling order in this case has set the deadline to move to amend the complaint at July 6.