I just watched it for the first time, and it seemed like it was pretty innocent. Right after the moment in question, they point out a continuity error, and then

I just watched it for the first time, and it seemed like it was pretty innocent. Right after the moment in question, they point out a continuity error, and then go on to list several examples of the challenges of a complex production like that. It did not seem like they were blaming the VFX artists, just acknowledging that those movies are made at an insane scale. They didn't say it, but it seemed to me like they were both a little detached from the process due to its size, despite being nominally so crucial to it.