All these examples seem to stem from a fundamental misunderstanding about what a flywheel is and what it can do. They are primarily for storing and releasing energy; they don’t generate their own momentum. https://en.m.wikipedia.org/wiki/Flywheel
I'd never heard of it and my best guess based on the name would have been some kind of way of "storing up" marketing effort to release it later, like if you had extra marketing $$$ and needed to use it before the end of the quarter but would prefer to spread it out.
All these examples seem to stem from a fundamental misunderstanding about what a flywheel is and what it can do. They are primarily for storing and releasing energy; they don’t generate their own momentum. https://en.m.wikipedia.org/wiki/Flywheel