regarding Frank's questionable choice of words:

He's a former gangster (whether he admits it or not) trying to go straight and play with the big boys. So he tries to find ways to fit in "sophisticated" words and phrases taken from his word-of-the-day calendar and it comes off contrived and nonsensical.

It actually fits, and his character makes more sense when viewed from that prism.

And the reason why I personally ascribe to this is we know how stellar Pizzolatto's writing is/can be, based on season 1. We already know he knows how to write for a character's specific voice, and Frank treading the line between legit and gangster is a major focus of his character.

Maybe more than other people, but I'm willing to give NP the benefit of the doubt when it comes to Frank's dialogue.

Of course, this is assuming Frank is the bulk of your complaint. If it's the whole of the show though... then we might just agree to disagree.