That is literally true, but for anyone who hasn't studied plant biology, I think that "some plants have evolved specific structures to host obligate symbiotic bacteria that obtain nitrogen from the air and convert it into a form usable by the plant" is close enough to "many plants can obtain [nitrogen] from the air".
> Plants cannot obtain nitrogen from the air
That is literally true, but for anyone who hasn't studied plant biology, I think that "some plants have evolved specific structures to host obligate symbiotic bacteria that obtain nitrogen from the air and convert it into a form usable by the plant" is close enough to "many plants can obtain [nitrogen] from the air".
(A link for anyone not familiar with this: https://en.wikipedia.org/wiki/Root_nodule)