look ok yeah it's not as scary as the dark descent and yeah it's easier, they removed the sanity system and the inventory and oversimplified the "puzzles" and changed some stuff up for the worse, so don't play it if you're looking for something that is equal to or better than the dark descent's gameplay.
the thing about machine for pigs is its story. its horror is in the story and the lore and it's similar to dear esther in that way except pigs actually resembles a playable game with threats and goals. the story in pigs is much deeper and more interesting than the one found in the dark descent and if you read all the notes (there's a lot of them) and speculate on them while playing, you'll still get your amnesia sequel.
all in all, where the dark descent was scary, i think a machine for pigs was suspenseful. that doesn't make it a lesser game. it had better story and better atmosphere. it lacks in certain aspects but makes up for that in others. still a fun and interesting experience.