If we agree that only following directions does not guarantee success, then we cannot blame the person and not the method. Any method involving dynamic things is flawed without help. We can also probably agree that advice that is mostly given here is not appropriate for especially somebody new to the hobby.
FWIW - I just read macrobacter 7 instructions. I have no idea if this stuff is good or a joke, but the instructions require the hobbyist to know quite a bit about bioload... and they even state that these are recommendations and say things like "most aquaria." I also read Fritzyme 7, which is for freshwater, but it has directions... dose given for new system... for systems with heavy bioload or some new systems (different I guess from the other new systems before) can be increased up to 10x with no help on determining the gradient... like a new hobbyist is supposed to know? If you overdosed (how would anybody know), then perform water changes. Neither of these talk about ammonia and the FW one does not talk about nitrite. Neither talk about stocking of fish, coral and inverts. NONE OF THE THESE ARE TRUE DIRECTIONS, even from a manufacturer.
I have no stake in the quick or slow game. My stake is in correctly and accurately identifying what is happening, explaining it so that people understand it, can prepare for what is coming and stay out of the pitfalls that some often experience. Labeling pouring in a bottle as cycled has caused harm - folks who didn't know about parameter spikes during a cycle for the new 'nem that they bought for nemo, buying too many fish, etc. They did not know that the real cycle had not happened yet. Sure, they are dumb, but it might not be that they did anything wrong and were just dumb to believe people who said that the cycle was over if fish were swimming OK and still alive.
I think that most know that I do not consider BRS to be an authority on much of anything outside of promoting, selling and shipping product, but others do. Without nuance, details and experience, how would anybody know what to believe what is helpful and what is not? Are there directions/instructions for what to believe from BRS?
Let's don't even start on the people who do follow manufacturer directions/instructions to a tee and still get hurt.... ahem... UWC, anybody?
I get that some people are going to want to just do whatever they want for whatever reason - deliberately do stupid things and/or not follow manufacturer directions. For me, this is not OK since live things are at stake. It is especially frustrating since the gain is often so minimal in the long run, or there is no real gain at all other than an illusion that some might believe. They all think of themselves as pioneers, like they were the first people to think of something, have a new method and are saving the hobby with some advancement. Nearly all the time, they just thought that they were smart because they were too dumb to realize that all of this was tried before, and usually by smarter people. They ignore when people tell them that all of this has been done and suggested and that they can even read about it in other places. They can even convince themselves further by thinking that anybody who is against them is dumb, establishment or a troll or hater. I totally don't have time for people who deliberately want to do stupid things... but I can leave them alone if they are just content to hurt themselves (and their livestock), but it is different for me when they want to hurt others, and especially those who don't know better.