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the cannondale track, argon 18 electron, dolan pre cursa have steeper seat tubes in their smallest size.
The steeper seat tube is exaggerated to fit smaller riders, which was the old conventional wisdom of the past.
Modern bike nowadays tend to keep a consistent seat tube angle in all sizes to allow everyone almost equal level of adjustment.
My (and probably others) concern is the steep 77 degrees seat tube that serve little to no purpose other than a slammed look of the rear wheel being close to the seat tube, it look awesome, but it gonna be very hard to provide a good range of adjustment should you wish to do.
Do you mean head tube angle?
I’m saying slacken the seat tube angle, which IMHO more important in the grand scheme of thing.