IMO, you should indicate where you have snipped sections of the original to create your edited version. (Unless you are Joe Farrah.)
As it is, you’ve created an edited version, rather than an excerpt, without noting that fact.
I’m glad you posted this column, because it is a critically important issue, but the way you posted it is wrong, IMO.
I went and read the column with your comment in mind ... PR did no harm.
Yes, it’s good to use “(snip)” to indicate missing text.