buzzword filled click-bait. :/ just use your brain. agile is only a problem when people follow it religiously instead of intelligently imo. its just one tool in the box, not the ultimate methodology.
There's "Agile", the buzzword that all sorts of advice-givers have capitalized on commercially, and then there's the Agile Manifesto [1]. The Agile Manifesto has merit and is a set of values, not a methodology - it would precisely agree with your advice to chiefly "use your brain". It's unfortunate that the latter has been turned into a Frankenstein's Monster of the former. [1] http://agilemanifesto.org/
The agile manifesto has plenty of problems that should be obvious with some thinking. Some of the statements are outright ludicrous and naive as much as others are valuable insights (but even then, only if you haven't thought about the problem very much and tried to approach it in reality).
I shipped software very quickly before learning much about agile at all... I ship it even faster afterwards, but not because I agree with it all... in fact I am convinced I am better off for ignoring the more harmful aspects and selectively choosing the ones that have a measurable benefit.