Again, it's not _hugely_ strong evidence. Linus Pauling won _two_ Nobel prizes, was unquestionably brilliant... but that doesn't mean I'm going to start megadosing vitamin C anytime soon (https://en.wikipedia.org/wiki/Linus_Pauling#Medical_research...).
(See also Newton and alchemy, and the list goes on.)
The experts I respect on this are people who's expertise is in software development, so when they say "this stuff helps me do what I do better and faster" I trust them more than if they said "I've started megadosing vitamin C and it's amazing".
It helps that what they're discovering matches my own personal experience as well.
It helps that what they're discovering matches my own personal experience as well.