We live in a world with lots of dynamic restriction. Some is electrical compression or limiting in audio, some is ambient noise floor in the acoustic environment.
I have a vague recollection of the exercise you reference and the take away was that accurately reproducing a wave form with that amount and type of HF content was not the trivial thing it was presumed to be. It kind of tied in with Yamaha's suggestion in the PM3000 owners manual to design the loudspeaker system to have 20dB of unclipped headroom over the anticipated operational level. Unclipped HF sounds better, whodathunkit? Clip the sub amp on kick drum hits? Nobody notices unless you launch cone-fetti.
Some years ago I was servicing/upgrading a "franchise" of venues with newer gear.
A lot of them had old style trap systems with a corresponding amp rack. Big amp on the subs and gradually smaller amps as you moved higher in the passbands.
Money was tight, so we serviced the old cabs and put in new amps and sometimes processing. A lot of those old boxes really came to live with an amp capable of enough output voltage swing on the mid and hi sections. Using something like a Lab FP10K on a 3-way+sub (think KF850 or similar) was a huge upgrade from the traditional MA5000-MA3600-MA2400-MA1200 or similar setups of it's day.
MA1200 had enough "watts", but not enough voltage on the output was the conclusion.