6 is only true if you can afford to hire good people.
I think everyone makes this failure early on in her/his career and it's only avoidable if senior developers can teach newbies in a way that makes sense and is understandable.
In the end, most people come to the conclusion that programming languages are less important for success but bad habits and complexity can kill everything. Even with frameworks who most of us tend to rate as "easy to learn" I've seen people completely messing it up. There is no language and/or framework that prevents people from mistakes AND allow them to learn/work productivly.
There is no holy grail. It's part of our job to justify technology problems and the usage of (new/old) solutions to fix the problems. Ignoring the past and/or ignoring the future (= trend) is a mistake. Learn to question your tech things regularly without questioning yourself.
Sure, it's easier for one to "ride the wave" of a hype. Container everthing, microservice everything. Our tech landscape grows complexity even faster than a couple of years ago. Somehow many people love complexity because they don't enjoy writing "stupid business software" and want to be some mad architect that rewrites everything in his/her favorite niche language with 10 new layers of indirection just because…
These are the worst type of programmers. Complexity for the sake of complexity. They will replace a ten line Python script with a Python "app" made up of multiple classes. Each class containing its own generator implementation because using loops or recursion is for noobs...