Also, the higher you jump, the less control you have over your landing.

Armstrong speaks about this in his debriefing. He said he tried a couple of high leaps and nearly fell over backwards. The suits themselves are awfully hard to puncture. But the PLSS might have been damaged if he had landed on his back, or he might not have been able to get to his feet again without help. These possibilities scared him enough that he decided not to do that anymore. His final leap up to the LM ladder was the only other low-gravity acrobatics he attempted.

In logic this question is what's known as subverted support. The theory is based on a putative explanation for an observation. We have shown that the observation is untrue, hence needs no explanation, therefore the theory based upon the explanation has no support by this argument.

Have pity, this is my first post

No pity necessary; you are quite correct. And welcome!