Ok, sounds good and if/when you have own experience it is hard to argue against that.
Those bridle angles just look to my eye a bit too radical, esp. in the wingtips. They are quite different to what FS or other quality kites use. Are you sure cells don't compress when kite flies and is loaded? Certainly there is some point when bridle is just too short, but of course this point isn't sharp or precise.
So kite just starts to fly worse when bridle lines become too short. At some point it is certainly possible to see that kite is not well supported, it becomes less smooth than it could be.
Difficult thing can be to tell why kite possibly underperforms. Is it because of too short bridle or something else? Making a conventional bridle one issue can be avoided.
Your bridle total length (kite to mixer) is not too short, more like opposite it is quite long.
When primary bridle lines follow the orientation of the ribs it is optimal but in practice some deviation from that can't be avoided.
IMO bridle is best done when everything else is finished, but design itself sets the basic dimensions and possibilities how to cascade. Then you have more time to look and think about it, or even get some opinions elsewhere.