I'm not sure if the author of your source is reliable. It was dated June 8 of this year and most of the crypto-enthusiasts here knew that these 2 people are bearish against the market of bitcoin but, there are articles, videos, and interviews on the news that Jamie Dimon regrets his past accusations against bitcoin - https://youtu.be/Ijpmwj8G0Ac.

Are you sure that the author is a reliable source or maybe it's one of the people who wants to spread FUD?

P.S, I might not be viewing that site for cryptocurrency news.