Earlier quoted context omitted.
They're not confusing popular and electoral votes. Trump won a majority of electoral votes, and a plurality of the popular vote, as they claimed; that is from the official count, not preliminary counts. He did not win a majority of the popular vote, but that is also the case both for Hillary Clinton and Bill Clinton (twice, though one of those was a rare three candidate race where a majority would have been unlikely)…
No one claimed he won the majority of the vote though. The claim was just that he "won the popular vote" (this time, in 2024, not in previous elections). And winning a plurality is winning the vote, in almost all electoral systems (of course, the popular vote is ultimately meaningless in the USA, but that doesn't mean we should apply some other arbitrary threshold for what it means to win it).
Presidential systems with runoffs are very popular. A plurality is useless there, you win with a majority.