I think that depends on what each person's view of the "good of skating" really is.
I wholly respect your opinion, but personally I believe that this is for the good of skating. I feel like people are making too big a deal out of this issue. It all really boils down to just one thing...one extra rotation in the air. If a figure skater can do this, why not let them? If not, they don't have to, it's not like the ISU is doing something crazy like making it required.
In another perspective, back when they were not commonplace, what if a man could land two beautiful quads in one program but no other skaters could do this feat at the time, so therefore he was restricted to one of those quads being a triple. This just sounds nonsensical to me. In a sport, there is always someone who has to accomplish something first before many more start doing it; it took 10 years before more than one or two different men could land a quad in the same compeition. If skaters are not even allowed to do what they can do (while keeping a varied jumping layout), I don't feel like that is good for the sport at all.
And considering the amount of ladies with wonderful high or delayed double axels now, mixed with the ones who struggle to even get the full rotation, it's impossible to predict the future. Neither you nor I can guess whether or not more girls will try triple axels. It's just not feasible to say that they will or will not.
So as for the rule, I say, why not?
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