You seem to be missing (ignoring?) two key points here: "go about their daily business" and "other scanty clothing." These shorts were not scanty, nor were they worn to go about daily business ... but rather so that they could run competitively. No, they should not wear shorts around on a regular basis, but to wear shorts that basically cover the knee just for a sports competition? Not the same thing.
That was also the accusation about women wearing "pants". I said that it may be permissible to wear modest pants given various activities that might be dangerous or cuмbersome ... during the course of that activity per modum actus ... as per the Canon Law term I learned earlier in the thread, or due to other practical considerations, say, to wear pants beneath a skirt when it's very cold out. I never said that it was OK in general. I also think that exceptions can be made for some culotte styles, the ones that basically LOOK like dresses, except that there's a slit in the middle to help with leg movement. There's nothing masculine about many of those types of "pants", and many of them are very loose and are not tight-fitting so as to be immodest.
I mean, nobody would confuse this (below) with a pair of pants or consider it to be masculine. Any man wearing something like that might rightly be suspected of being a ɧoɱosɛҳųαƖ:

You seem to be missing (ignoring?) the fact that the whole point of this conversation is whether or not there has been a change in SSPX teaching (or at least praxis) regarding shorts.
You also seem to be missing (ignoring?) that it was me who highlighted the final sentence of my quote from the booklet which conceded long shorts for athletic competition.
That was my way of saying "concedo" to you on that particular point, and also to demonstrate my good disposition (by the mere fact of having posted that which essentially concedes your argument regrding shorts for sports), despite your frequent accusations of dishonesty.
If I was dishonest, I could easily have let the quote lay hidden from the conversation.
On the other hand, as regards your comments on women and pants (i.e., it might be better for them to wear pants if they are undertaking work which would make femenine attire dangerous), I would question why women would undertake activities which cause them to have to masculinize themselves, and if only done by necessity, then I would note that exceptions do not disprove the rule, and the norm remains the norm.