He uses the word "talent" seven times in the interview. This is the most related to this thread:
"...it’s also correct that I started as a half marathon runner when I joined the group back in 2014, that was the main goal, just running half marathons locally. Maybe I would be going abroad just to run longer distances because I said to my coach that I’m not fast enough, I’m not talented enough, I have to run long distances because that’s the only thing talentless people can really do."
How he defines "talent" is important to consider.
To me, it sounds like he is talking about raw speed, and if you don't have it you have to keep going longer and longer until the speed that you do have is sufficient when combined with a lot of hard work, to yield results.
Later in the interview he equates talent in the 1500 as the ability to run 3:29 or faster.
Agree or disagree, but we should try to understand his point so we know what we are agreeing or disagreeing with.