If you go to this link, which is MJO phases in El Niños, Phase 7 in February is not warm in the east. There is a trough along the southern Conus, just like what long range modeling is showing; I've attached the image. I don't know where he got that. Maybe he's looking at all Enso phase average instead of Niños.
https://www.americanwx.com/raleighwx/MJO/MJO.html