My point I guess is what is sufficent for many who do not do massive blow ups etc. Then colours can be purposely enhanced or colour shifted.
On one hand, I agree. I've also posted before that, at a certain point, the skill of the photographer and post-processor will have a more significant impact on the resulting images than the camera.
On the other hand...
a Panasonc FZ150 goes from 25mm to (600MM F5.4)
Don't forget that, in addition to focal length, crop factor also applies to aperture. i.e. the FZ150's 4.5-108mm f2.8-5.2 lens is equivalent to 25-600mm f16-30 and the higher f-stop not only affects low light performance, but also aids in focusing. And that brings me to...
Most Canon SLR's do not support video very well with no AF
True, but if you shot with the equivalent aperture on an SLR, a lot more of the image will be in focus. And instead of a Canon, if you compare the Panasonic FZ150 to a Panasonic m4/3 camera which does AF while shooting video while also using a shallow depth of field that the FZ150 is not capable of...
Now, maybe you don't need AF while shooting video or can't afford a GH2 + 14-140mm + 100-300mm lenses. Then yes, those would not be very good recommendations. But the corollary is that, if you do need those features, then the FZ150 would not be a very good recommendation.
Bottom line, as I've said before, it's about finding the equipment that best fits your particular needs.