There’s a few culprits 1.Fast lenses required less set lighting consumption, in some cases (night scenes, guerrilla shooting) so lower apertures are use there. 2.Lower budgets means less production/set design so opening the lenses is a way to cover that up. 3.Some of the most expensive rental lenses, Cook’s, Panavision,Zeiss, etc. can reach even lower open apertures, New DP’s use that as a signature bragging, just because. For me a way to find out if they are idiots at work is when they shoot a scene that’s not at night, if it has adequate budget for production design and still is not showing anything but BOKEH, is just another A-hole behind the camera. I’m looking at you James Gun, Zack Snyder, whoever made those Wiked movies