It is not their role to do so. Or put another way, it is no more their role to do it than yours.
Furthermore, the admin is likely not a domain expert and it makes sense to send it back to the author who clearly knows more to say "Hey, we need citations." Which is what was done.
> Or again, after a very quick search realise the person is senior and publish asking for more public input on the topic/atricle.
This was more or less done: The rejection notice said more input was needed.
As someone who spent time in academia: I'm definitely against creating pages for researchers who merely have published a lot. Their work has to be significant. While hers clearly was, it was not referenced.
> The fact it was deleted instead shows either a problem with the mods or a bias among the mods
Frankly, the fact is that you are not aware of Wikipedia's AFC submission process. Please take a look here:
https://en.wikipedia.org/wiki/Wikipedia:Articles_for_creatio...
And the guidelines for reviewers:
https://en.wikipedia.org/wiki/Wikipedia:WikiProject_Articles...
Specifically, look at the review flowchart:
https://upload.wikimedia.org/wikipedia/en/thumb/a/a8/Flow_ch...
It very clearly states that if an AFC article is not reliably sourced, it should be rejected.
While I can't speak for the actual biases of the admin, the article would have been rejected by any unbiased admin who follows the process.
> Most conversation on this is around defending a wiki admin from not being capable of determining good from bad which is getting stupid.
I agree it is stupid, but the stupidity arises from the CBC article: They chose to highlight this without doing the appropriate work to understand how Wikipedia works. While the bias they speak of may well be very real, they didn't pick a good example - opting instead for sensationalism.