It's time (Option to Hide other players Glamour)

[AnotherPerson]

Personally I think it's a great idea, it gives those who want a more immersive experience another option and those who don't can feel free to ignore it. I really don't see how anyone can object to that?

Because it invalidates choice of character cutomization, which causes potential of issues to crop up elsewhere. Glamour is just an extension for customizing their character's looks. The reason why people use it can be summed up to:
1. For themselves to see.
2. For others to see.

Giving an option to turn that off simply means character customization doesn't actually work for point 2, which makes the intended effect of glamour pointless. Even if not a lot of people use the feature, it's because the feature exists that this would be an issue for character customization. It's the equivalent to saying you can design your Viera to have a certain hair color, certain eye color, certain height, body features, etc. for a long time when creating your character, but people can also turn that off so there's no point in seeing your effort put there. They might as well not bother customizing in the first place. As an MMO - character customization and fashion go hand-in-hand for the social aspect of the game, and having a function to turn off a part of their customization can make players feel as if one of their customization choices were actually taken away from them because there's no guarantee what they do will actually reflect what others will see - which is a huge nono if devs want to keep the success of an MMO's social aspect running smoothly. As a dev and as a player, you would want more choices to be available to you, not have that feeling taken away and replaced for something else that compromises the old one. There is a reason why this game is so popular and why FFXIV has many people asking for races/outfits - character customization plays a huge part in this. There are a bunch of threads with showing off a character's glamour in the first place - and those threads are not small at all.

For those who don't see the problem yet, then think of why fantasia and glamour in mog station exist. Both are related to avatar character customization.

Entertain the thought: Now I know most people wouldn't actually use this feature, but because the choice exists it creates the possibility that one day the new norm is to have people will turn off all glamour for whatever absurd reason. Now I'm not that sensitive to glamour, but if there are people don't like glamour and wants it to be turned off, then there will always be those on the opposite spectrum who are. Perhaps people suddenly feel as if glamour can't work because people turned it off, causing a slow and natural shift in the mindset that glamour doesn't work, or causes more people who use glamour to turn it off. Perhaps people will suddenly stop investing in glamour altogether. Newer players who join learn of that fact too. There are also people who play this game solely for the social aspect and just hang around in their FC or Limsa all day with others RPing, showing their outfits to each other, etc. Now that the shift in mindset happened, players may no longer do that anymore and just stop hanging out in the game entirely, causing them to quit or play other games. Can you completely guarantee there will be no drop in sales for both glamour and for fantasias because people simply do not believe it works? From a business aspect to social aspect and even player population count, this is very bad idea because it leaves everything up to the possibility of players - and I can assure you a good game designer avoid potential backlashes by preventing the possibility from happening in the first place.