Godly “expert”, John MacArthur, doesn’t have a clue.
Of course he isn't SDA, so you would, of course, naturally take issue with him as a general principle.
Predictive prophecy is like seeing dimly and open to interpretations.
With that said, I'll paraphrase what another teacher said;
“Sometimes we don't agree with everything a Bible teacher says. Like eating a watermelon, you must spit out the seeds and not simply throw away the watermelon”. HOWEVER, there are many “teachers”, “ear ticklers”, frauds, anti-christs and cult leaders who must be shunned. MacArthur isn't one of these.
I generally like MacArthur but I don’t buy his dispensational eschatology.