- Explain to me how they DO work on their own with reasonable arguements. Even better, try 3v3'ing without the glyph and on a decent enough rating that your opponents know what they are doing. You'll see with your own eyes, the amount of snares, how you can't compete against them and how mandatory is the glyph, you can experience yourself. This will give you a better view on the subject, and how MoP PvP actually is. You can produce your own structured and detailed arguements easily afterwards.
This will be a better arguement than "you are plain wrong, they do work, because your logic is wrong."