If i allow user for all the options it's not crypto-agility, it's being dumb, "Crypto Agility" is a broad way of designing the software where cryptography is s

If i allow user for all the options it's not crypto-agility, it's being dumb, "Crypto Agility" is a broad way of designing the software where cryptography is separate from the logic and operations so that you can substitute IF NEEDED to something different. There is no rule that states it has to be everything at once at the same time, and backward compatibility have to be kept. The guy is very confused and very mistaken about the topic he is talking about, and on top of that, he had to show everyone that he is a furry, like that makes him a better engineer or something. I do not believe what he wrote is worth wasting time on reading. I am working in the sector for more than 10 years and for me, this is just a word salad.