I don't mean this to sound rude or demanding to the band, but...
I really think most of the people in the crowd for these shows would be incredibly happy to not hear Kids/Poker Face. That cover medley was a great way to excite festival audiences who are less than familiar with Weezer's catalog... but that won't be necessary for the people who come to the Memories shows.
Most of the people buying tickets for these shows are hardcore fans who are doing so because they love the band's album tracks as well as the hits. I think Kids / Poker Face would be taking away the chance to hear a track from 'Hurley' or a beloved fan-favorite like "The Angel & The One" or "This Is Such a Pity." Stuff that was avoided on the festival run this summer. I've seen it twice now (Milwaukee '09 and MN '10) and would love for its slot to be replaced by something more "fan-friendly."
That being said, I can't be too picky considering the band will be playing two of my favorite albums of all time in full. Just thought I'd throw this out there. :)