The education and conference industry are driven by those deltas because that's where the lucrative jobs are
These things tend to fall in on themselves. Ten years ago for instance, large scale data stores were the rage. Everyone was rolling out petabyte solutions for megabyte problems. This went on for years before people realized it was absurd.
You're finally starting to see this in containers. It's container overload for really simple problems - like hiring earthmovers and cement mixers when your construction job is installing a bookshelf.
People want to expand their resume and use their current job as a stepping stone but they're also creating messes by using inappropriate tools.
It's an industry problem.