OK, I'm exaggerating, but it seems to me that the point of this article is that two year and four year (and above) schools stand together or they...eventually...fall together, when it comes to tenure.
If politicians can point to CCs without tenure as a model for four year (and above), shouldn't my colleagues in four year schools be concerned.
My CC murdered tenure several decades ago; we now have the contract system. Four years: take note. Why not you?
As the OP mentioned Georgia Gwinnett College (public four year) does not have tenure. I know of some privates that don't have a tt system as well.
But we need to do a much better job defending tenure somehow. I am not optimistic.