Nice. But very expensive.
Not the best testing, either... As he often "dipped" the bar before testing the tuning, which helps "reset" the trem.
$175? Yeah, that's expensive...
My 2017 Fender American Professional Strat setup to Fender factory specs, including floating trem, stays in tune better than any guitar I've ever had. This includes multiple locking trem style guitars and fixed bridge.
And this is with heavy trem use in both directions.