Good point, those percentages are people with those skills, so it means Clojure has higher supply growth than Scala, and (according to Indeed) Scala has more demand than Clojure (both in absolute numbers and in relative growth)
As much as I love Clojure, this moves the needle a bit toward Scala regarding where I should put my focus on.
Still if Clojure has higher growth than Scala in people knowing it, but lower growth than Scala in companies wanting to hire people knowing it, then sadly I still have to disagree. Is my logic completely flawed?
Sorry, I don't think this is a 100% correct logic, but may be the grow in LinkedIn shows some information that is not gathered at Indeed and the reverse is also true.
LinkedIn shows that more people were adding the Clojure skill, it can be a new skill within people who was working on a company for long and it doesn't appear on Indeed. At the same time Indeed captures recruiting alternatives but when the job was published (not on alternative and important channels like presenting an acquaintance)