One problem of TFT in regard to gaming that is often boasted by gamers in the german forums is that of latency. Most TFTs/LCDs introduce a lag of at least 1 frame (16 ms), many overdrive VA models (like your Eizo) will show a lag of 2 frames (33 ms). When you use monitor-interpolation of lower resolutions it will add even more latency of usually 1 more frame. Some TN models don't show any lag at all, some VA models will get along with only 1 frame lag but show more blur in return).
I consider upto 2 frames (33 ms) as playable for most users and 1 frame as preferable. But as I said, many hardcore gamers are concerned about the slightest lag and wouldn't even want to suffer any lag against their opponents.