HawaiiTom

I think the reasons to Pio choose betting 9x in AQ9 is because of blockers, as it blocks nut hands in IPs range and also a lot of other natural continues for IP, but 9x does not has much EQR in this kind spot, so it prefers to bluff it, kind 5 outs against an Ace thing.

this hand is completely standard. Probably highest ev line. Would go closer to 20% on flop but otherwise WP.
This comment is what hippies would call 'low vibration', or 'toxic'. Sadly I don't have a better word for it.
Might be worthwhile to try and improve your mindset so you can watch training videos with an open mind instead of rudely criticising coaches that are most likely further along the journey than you are.
If you are struggling to progress, this is probably why.
All the best though.