If anything, we should be banning miners who refuse to do reasonable filtering like this.
Banning is such a strong word, though. If a majority of miners would in fact refuse such transactions other smaller miners would start getting a lot of orphans and would be forced to either reduce their blocksize drastically or starts filtering out what goes in to their mined blocks. But that's only if the majority of miners sees that as a good thing for the network and their bottom line, no?
If miners refuse to do their job in filtering, there's no reason to leave it up to miners.
Regular participating nodes can refuse to relay blocks with (eg) more than 50% Dice spam.