On "Frequently Played" Champions are labeled with primary regardless of what role it is played in
[Thread was removed and was suggested to be re-uploaded to "Report a Bug"]
EX: Playing Lulu Mid or top is still listed as support, again, regardless of what role the champion is actually played.
This tells me that the role displayed is based on what the Champion's Primary Role is on the Store Page. NOT what the actual role it is being played.
A great example of this is that Ekko is labeled as "Assassin" on the shop page, but ekko is primarily played as a tanky jungler. Rather than a lane assassin.
If I am playing, for example, full tank ekko top lane, I am most (likely) not playing the role of assassin.
If I am playing full Mage Lulu top lane, I am not supporting someone, hence why it should be kept for bot lane or kept for where 2 Champions laned together (EX: if for some reason ADC and Support went mid lane, they would keep their respective roles but if mid laners went bot lane they would keep their respective champion role, what I am saying is that support could for example, follow wherever it finds that a duo lane happened)
Take this with a gain of salt. :^)
http://i.imgur.com/kbvlz3h.png
Lulu Nautilus Trundle Poppy Ekko ect.