I get the impression that certain people would allow similar shenanigans unless there was boxed text in a mod that specifically disallowed it. .
You know what? That doesn't even bother me to be honest. If someone wants to play that way, then sure. Whatever their table wants to do to have fun. I think the thing that gets me is the...well...I think hypocrisy is the right word for it. I will admit, hypocrisy is one of my low tolerance things. The game is designed in a certain way. That way explicitly tells you what to do (rules), and one of those things is that the DM has a certain job to do when running the game. It flat out tells you in black and white in the DMG that the DM needs to breath life into monsters and NPCs, and run them like living thinking beings. Things like flavor text in the MM are just as important as attack stats. And INT stat is just as important as a DEX stat as far as how you play a monster is. These are things that are part of the game.
So when someone is too lazy to use any of that or to follow the rules of how the game is designed and calls other people lazy for not designing the game exactly how they want to play, that is just pure hypocrisy to me. On top of that, it's one of the most illogical arguments one can have. We all have preferences, so expecting the designers to design the game exactly how you want it is pretty much impossible. Especially if your preferences are in the minority of gamers. In what bizaroo world would that ever make sense from either a business standpoint, or fan based standpoint? I've designed games, and the only time I've designed a game where I wanted a specific feel that most gamers wouldn't be drawn to is when it was my own project and I didn't care how many other people played it. Pretty sure that's not WotC's mission statement with D&D lol.
So yeah. If someone wants to change or ignore rules to play a certain way, then more power to them. I will never accuse them of being badwrong. But you have to realize that doing so means the onus is on you for modifying the game to fit your preferences because it's not designed to do that out of the box. I do have a real problem with people who make these arguments:
"I'm ignoring huge swaths of the rules, but I say the game is broken, and if you don't agree, then you're just an apologist who thinks the game is perfect."
"I love the game, even though I've never said a good thing about it, but instead I'm always saying how I hate how the classes, races, combat, monsters, treasure, spells, feats, etc are designed."
Being a DM requires work. If you don't like to do any work, don't be a DM.