For me there is no better bike at the moment. I would totally recommend.
I've been riding it now for 3500 km and I've never had any problems with it so far. Also in race action.
The problem with the rear axle the youtuber talks about, I can't confirm. But I changed my rear axle for a Shift Up anyway for the weight .
The dropouts haven't been a problem, too. For me, with 65 kg the frame is stiff enough. I think you would feel the flex of the wheelset before the flex of the frame when pedalling hard.
The chiner frame I had before the 062 was crap in comparison..
And of course you can build it very (not 21 lbs
) light
This one comes at 7,9 kg or 17,4 lbs with a 1155 g frame with a bb30 bottom bracket.