Exactly my thoughts as well.The OP mentioned remote start ... I'm wondering if, since it was warm out, and since remote start automatically maxes the AC, if that's what got the electric fan or compressor revved up more than usual. If it's a fan, probably it's variable-speed, I should think.
Completely Off-Topic: I was astonished when I just ordered my CR-V Hybrid -- I went to check out the Rav4 competition, and there were NO NEW CARS. The entire dealership for Iowa City had used models only. Orders had 4-6 months waiting times. Meanwhile, the Honda dealer was unloading a trailer-load when I arrived. [Apologies to T.M.E.]
One of the function of the remote start is to regulate the climate control to 72 degrees.
The sound what I hear in the original video is very close to the one mine makes white the AC is running. I have also noticed the AC works much better while the car is running. The cooling is much faster than in the remote start mode.
So in short, nothing to worry about and just enjoy the ride.