Don't get too excited, this doesn't mean what you think.
F: No longer fit to expand game population but increase value for users— David Gibson (@gibbogame) February 1, 2019
Basically, Furukawa is saying that the ubiquity of smartphones means creating an entry point for gamers who never played a game before is no longer a priority for Nintendo, as smartphones now do that job fine. Rather, Nintendo's new mission statement is to expand their products and brand awareness to these existing smartphone gamers. Creating games and products that can be enjoyed by both casual smartphone users, or veteran console gamers.
No, Nintendo isn't abandoning casual gaming, they are however, no longer focused on getting people into gaming, and instead focused on appealing to as wide an audience as possible. So I don't want to hear any BS about Labo failing or Nintendo's back to "teh hardcorez" now because none of that is true.