This is my impression as well. However, in low-light situation, filtering the (little) available light further is not what we want...

Oh well, I guess we need to compromise - just as Sony did, for some reason not applying a proper long red filtration to the EX series cameras in the fist place.

From my experience so far, the problem is much ore amplified and noticeable in an indoor setting under tungsten light rather than in sunlight. So basically the urgent need is for a filter that does not cut any light but restores the blacks.