Halting ICO issuances because they have 'security-like' characteristics is fine. But companies which have followed all regulations and are listed companies should not be penalized. Stopping trading in these companies just because the SEC has doubts over the value of their assets seems to be stretching regulation too far. Investors value companies based on future growth potential and present value of their expected cash flows, not based on assets. The SEC should stop trying to micromanage things.
Not sure about PDX and Victura, but doesn't the article say that Cherubim failed to submit annual and quarterly reports? In that case I would say that some sort of sanctions are definitely justified, no?
But in general I agree with your main points in that SEC appears to be too paranoid whenever they hear the word "cryptocurrency", no matter whether the regulations were followed or not.