Yes, I'm a maintainer of Django, so I'm biased too. But look: there's a good argument to be made that parts of (even of all of) Django is too complex. This, however, is not that argument; this is just a made-up metric.
ETA: I misspoke above: McCabe isn't made up. I meant to write that this was a cherry-picked metric. Leaving the above as is because people have already replied to it.