Probably a very interesting stance but I think, that pretty much every mod gives an advantage/disadvantage.
It's simply depending on what you do with the certain information given and who utilizes it.
For example, you could say that even contour icons and/or XVM give you an advantage, because you can determine the enemy's setup far more quickly (especially inexperienced players) and therefore make more informed decisions, more quickly.
On the other hand, even with all the information in the world, people who can't utilize these infos don't benefit from them as much.
So it really depends on who is using what and how.
Guess, you'd have to specify in which environment the mods come into play (tier 9/10, mainly with very experienced players, in e-sports, etc.) and how much of a potential the specific mods might have - which still doesn't mean that everyone can actually make the most use of that.
Things that are part of the standard game ("gold" ammo, etc.) don't really bother me too much.
If the developer thinks that they are good to use, then that's either fine with me or I would have to stop to play.
It's WG's job to balance that stuff out and as long as enough people accept it and the game isn't completely unplayable, it'll stay anyhow.
With all that being said, try-hards will always use everything they can, in order to look better than they actually are.
They just don't realize that or have any shame about it.
I think that it's simply up to everyone individually, to determine what kind of people they want to be.