Riot has left something after the "Runes rework"

If you go to the "Store" and go to "Accessories" then check "Rune pages"

You can see under the search bar that there are 3 combo menus that what appears to be the filter of the old rune system

Riot, did you forget to remove it or do you have a second thought about the rework so you kept it in case of Something-Something we don't know about (Yet!) ????