If it produces unphysical nonsense, you can always say "You should have considered xyz!"
Computational chemistry inherently cannot consider everything we understand about chemistry or physics or consider beyond certain scales, so its accuracy and precision are limited. You have to constrain the space properly, which makes people a little dismissive.
Sinéad Griffin isn't an actual scientist?
https://en.wikipedia.org/wiki/Sin%C3%A9ad_Griffin
Plenty of real scientists are excited by the DFT results while cautioning they are merely supporting evidence and not conclusive evidence.