I tend agree with those people in a general sense.Anythung with start,finish and middle is automatically better than never-ending soap opera with incoherent shlock in the name of continuity.Moreover serious conformity that lacks creativity.Heck!the old days of comics where there used to be other genres and episodic anthology storytelling was 100 times better.
It depends on the guy at the directors chair how losely or closely they want to adapt.They don't have to adapt at all.It's can be a spin on characters by taking some aspects from pre existing version.Have ever heard of stan lee's superman?