Cardano is more or less 6 years old as far as I know, so we could say that it's too "early" for Cardano. Compared to it's competitors though, some smart contract platforms are like half the age of Cardano but yet they all have those so called "apps" working already. Maybe Cardano is taking the sort of "play safe" approach in terms of development? Alright, that's  probably a good strategy to prevent bugs and breaches and such. But him calling out Bitcoin for slow development LOL? Just disingenuous.