Hmm, having googled very superficially about django and flask, it seems to me like the state (at least today) is the opposite - flask is lightweight and django is more heavy duty, having a built in ORM layer, authentication service, admin interface, db migration framework, etc.
To be fair the article also says Django is known for its performance but when I googled that the other day, it looked like it was often near the bottom of the chart rather than top... I guess it really comes down to personal preference in the end 🤷♂️