It’s hard to see this as anything more than an attempt to change their bet on a losing horse in this race, as the commenter you replied to pointed out.
And I’m not sure if we’re remembering the same 2016 election. We’re both talking about the same election, that resulted in the largest win for an American political party in history, right? 2016 was absolutely horrendous for conservatives and their saving grace was the senate cycle was particularly bad for democrats. If there’s a similar performance this election there’s a good chance that they take both branches.