hrm
taking, for example, the railroad
there are eleven
weathervane missions, which are literally "go to tall place and come back plz"
three
jackpot missions, which are again "go to place and come back"
six
Randolph safehouse missions, which spice things up by being "go to place, pick up thing that will tell you to go to place and kill everything, report back"
six
To The Matresses missions, which are "go to place, kill dude, come back"
thats 26 straight filler quests just in the railroad. no plot, no choice, just go, kill/pickup, come back for the next one.
Dunno how many quests the RR will have by the end of their story, but i somehow doubt that it'll be 26, which would still place it at 50%, which is, evidently, quite bad indeed.