If you like this model you may also enjoy “paint drip people”
You probably don't want to adopt this metaphor.
Imagine someone saying it in a meeting that includes people other than some homogeneous group that thinks it's funny and clever and appropriate.
If you saw someone else making that mistake, you might have to interrupt them diplomatically.
This is just a T-shaped skillset described by one of those people who are oddly-allergic to using already existing terminology and have to invent their own.
That's so uncool. As in: some people are cool, others simply don't understand cool.
Surfers are cool. Surfers for the very most part don't wear speedos.
Why speedo? Why not bikini?
All abstractions are leaky. Some are useful.
You can always overthink a metaphor if you choose to.