Sure, that's a motivation too, but they were also talking about random people who'd find a reference and were curious about their work, not just other researchers who may quote them. It's not all about h-index.
When a guy literally makes, among other things, regular paleontology news reports and whole videos of his own university course material during summer breaks, and puts all that to youtube it's safe to assume he just likes popularizing his subject.
A funeral wreath and a book on surviving the death of a spouse.
Fuck these assholes, that's vile.