Yeah I tried this type of approach back when people were praising ST in its release state. If they thought it was too easy they were free to go in with less players, not used consumes/WBs, take off some gear etc. They didn’t like that idea, even though it would give them a harder raid while not gatekeeping players who aren’t at their skill level.
Truth of the matter is people like having things others don’t. It makes them feel special, and superior to those they consider to be beneath them. They don’t want people who they consider worse than them to be able to do content, because they personally don’t believe they deserve to.
Look at these threads complaining about SE difficulty, you’ll find them. Look at the old ST threads, you’ll find them. Look at mage tower threads from retail, you’ll find them there too.