This isn't a big deal but maybe others don't necessarily agree with it either.
I don't really see why you'd get an additional point (2) for a thaw than you would for a kill (1). Perhaps this is setup this way to encourage better teamplay and more effort being put towards helping your teammates when they are frozen. Honestly, a point is a point, people will attempt to help frozen teammates even if it were just treated the same as a frag, 1 point.
Just wondering if there would be anyway to change it back to how Q3 had it; 1 point for everything across the board.
Either way, it's not a huge issue, and I'm sure a lot of people don't care one way or the other - just a request. :~)