Well, that was a bit of a joke, but I have been around the block a few times and been on one side of a merger or other, and gone public to private and back (as an IC/soldier, never been management). The Twitter acquisition is the craziest thing I've ever seen; there's a reason it's big news.
These kinds of things have formal courtship type periods and legal filings that take months, and then they happen, and then executives plan on rolling out layoffs and cost cutting measures over years, not days or weeks, like the "plan" seems to be here. This really is madness, and I can't blame people for thinking the site might just wobble and collapse at some point, though as the author goes into in very nice detail, we do try and build resilient systems. I'm certainly curious how it all plays out, but you won't catch me making any guesses.