I bet the 5th gen really does not have that many problems. It probably just looks that way because they are selling 100 times as many printers per week as anyone else, and selling them to beginners, and so 100 times as many people have trouble even though it's the same percentage of printers.

Just like if Ulimaker sold 100 times as much; there would be 100 times as many questions/problems posted here.

Just a guess.