The number of good prequels in all media can probably be counted on one or two hands tops.
Prequels are really just cheap cash-ins and filler. It's something writers do when they've creatively bankrupted a franchise. Really nobody sits around pining for some piece of backstory to get a full treatment after the fact. It's ironic that the poster child franchise for prequels and proving they suck is back at it again with stuff like Rogue One and a Han Solo prequel movie. They still haven't learned and I guess the fans are so desperate for new media they'll support it.
Prequels are really just cheap cash-ins and filler. It's something writers do when they've creatively bankrupted a franchise. Really nobody sits around pining for some piece of backstory to get a full treatment after the fact. It's ironic that the poster child franchise for prequels and proving they suck is back at it again with stuff like Rogue One and a Han Solo prequel movie. They still haven't learned and I guess the fans are so desperate for new media they'll support it.