The 10% bonus for jumps in the second half of the program has been in place for quite awhile now, but Zagitova is the first skater to draw attention for back-loading her programs. There's a reason more skaters haven't done this: IT'S REALLY HARD! I don't think one skater back-loading her programs calls for a rule change, especially since the judges already have the opportunity to punish any perceived flaws in choreography and musical interpretation in the skater's PCS (and Zagitova did get lower PCS than Medvedeva). I personally didn't mind the back-loading because the music edits she used built in drama in the second half, matching the increased energy and drama on ice with the jumps. I much prefer that to the thousands of programs I've watched where the music starts soft and delicate, but the first element performed is a triple lutz-triple toe or triple axel (or for men, a quad combo).