really can't stand near, all he cares about is that the japanese investigation group will come and tell him about the real L and his suspicious, he doesn't have real materials and not investigate properly but wants that everything will come to his hands.
Light's intelligence is being reduced ON PURPOSE so that Near might win. I mean, if I could think of different ways to get out of Nears implications, then maybe Light too can reach them.
Either Light got nerfed or Near got a huge buff, there's no other explanation on why their confrontations look like that. Near's "investigation" is based on assumptions, no real evidence, he could enevr compare to L.