I’ve seen pilots perform this maneuver at air shows in Southern California during the 1980’s and 1990’s.
Like you, I was impressed with the pilot’s abilities.....
and so was the crowd of 100,000 air show enthusiasts.
Real airplane, real pilot.....NOT a model.
Really? Name one full-size pilot who hovered on the prop (continuously, not a hammerhead or a harrier) in the 1980s or 1990s.
I went to every airshow in Southern California during the 1980s and 1990s and I never saw a full-size do this mainly because they didn't have the power.
Even giant-scale model airplanes (like this one) didn't have the power to do this until 2000 or so.
And most of the full-size got the idea to do this from the model flyers. The most notable recent example is the Pitts Python.
Now, Sean Tucker (no relation) was able to take his Pitts Challenger and fly at a very slow speed (55mph) and an extremely high AoA, but he still has not performed a stationary hover.