I actually enjoyed some of those films (I didn't see every one). I guess it's in the eye of the beholder. One film that really bombed with critics and viewers (not listed in that link) was the sci-fi/horror Skyline. It got ripped up and down the line. While filled with some faults, to me it was a fun, creepy movie. We expect perfection in some films and are disappointed when not delivered; we expect foibles in others are just go with the flow. Was HoDS a perfect film? It could've been, but because of the cuts demanded by MGM, it ended up disjointed. So did NoDS for the same reasons. But we're DS fans. We enjoyed them.
Gerard