Are enemy countdown tiles not special tiles? I do not know the intention of the modification so I cannot say if this is working properly or not.
Currently, her blue at 5 ranks DO NOT move enemy countdown tiles to the middle and changes them to red charged tiles.
It can affect them, I had her pull Scarlet Witch’s countdown to the center and turn it into a red charged tile.
The power’s description says it targets basic tiles and enemy specials. It’s possible when you tried it you were just unlucky and she only selected basic tiles to move.
Yeah, just like 3* R&G’s Green power, enemy special tiles are simply included in the list of eligible tiles. Riri will swap basic tiles and/or enemy special tiles, with no preference for either. I’ve seen it happen, so I know it’s possible. Throw her up against Storm if you need to prove it to yourself 
Use the power to generate red AP and cascades; it’s not a direct counter to enemy specials (anymore).
I wonder how long I can go on without it affecting enemy specials.
Just wait until there are red tiles somewhere surrounding the center 4. Trust me, you’ll get over it
[Marked as solved. As Jaedenkaal has explained, this is similar to 3* R&G green, where enemy special tiles may be affected, but are not prioritized. These types of powers are more effective against enemies that produce a very large number of special tiles than those that create a small number of high value targets. And yes, it’s an amazing red AP generator.]
Yep. I typically try to wait until there’s a couple of red tiles surrounding the center 4 before firing her Red power. That, or at least have 1 or 2 within matching range.