So my main issue with the arguments in the OP is that you could take the fact this is a video game completely out of it, and make these arguments against a tabletop D&D campaign, and they would still be considered silly arguments.
The main arguments as I see it are:
1. The stats of monsters in the game don’t match the monster manual. I don’t think there’s a single experienced DM on the planet that doesn’t alter monster stats to suit their adventure. This is an extremely common thing to do. You don’t want every goblin in your game to feel like a carbon copy of one another.
2. I got a bunch of bad rolls in a row. Yeah, it happens. Welcome to D&D.
