I agree with Digger.
That being said, no artiste likes feeling like their work needs to be 'tempered', so from a purely artistic viewpoint I also agree with Jason's stance (what I understand of it, anyway).
From my own viewpoint, I think how you treat someone is up to you personally to decide, and thus feel that anyone who feels that Mr Mantlo is fair game, regardless of his health conditions, is in the right as well. provided nobody makes mean comments about his health conditions, that is. Just my two-cents' worth.
Consider me 'on the fence'.