Nobody is debating that FFS isn't a learned/perfected technique similar to any other technique of yesteryear like flipping with Denny or cranking with Fritts.
The old guys simply got caught off guard, many of them have or are doing better jobs at adapting it in their games. They're still way behind the curve, and young minds will always be faster learners of new tech, a tale as old as tech itself.
Arguably the single best FFS user on the planet was installing cable/fishing from a 14ft jon boat when he installed a job for a guy who worked with Garmin, and he got a prototype Garmin LVS32 unit. The rest is history. He essentially had one of the first units, and put in way more work before anybody even really knew about the tech. I have little doubt if Josh Jones wanted to compete at the highest level of Bass fishing he would do so quite successfully because he has the single most important tool or technique mastered that's relevant for the game today. He dominated Crappie derbies with it for a couple years.
I mean there's really no reason to debate or argue this topic, it's fundamentally changed the game on the professional level. Hate it, love it can be debated, but the fact that it can erase the need for decades of on the water experience is clearly evidenced already in its infancy of usage.
For the record, Trey Mckinney would fish circles around me, and I wasn't diminishing his incredible feat at such a young age.