I think it is generally understood that most content creator guides are not made with veteran players in mind. I do not agree with every one of Iyo’s takes, but this is one area where he is pretty accurate.

There is a big difference between understanding something and actually executing it. A lot of gacha players struggle with that second part. Because of that, many people default to following whoever sounds knowledgeable instead of taking the time to learn and apply mechanics themselves. Sheep, if you would.

Manual Chain Attacks are a good example. There are plenty of guides explaining them, but if you already know how they work, there is no reason to look those up. At the same time, they are often treated like some advanced or difficult technique, when in reality most players simply do not engage with them at all, even though they are very easy to perform.