Not OP but I guess Gladwell-style can be understood as writing that is presented as nonfictional but has more in common with fictional writing.
Not OP but I guess Gladwell-style can be understood as writing that is presented as nonfictional but has more in common with fictional writing.
To me, it's when narrative has priority over accuracy. There are a number of popular edutainment figures who fit this mold, but Gladwell is probably the most prominent example.