Making posthumous baptisms public is the root of the problem. Mormons should understand why non-Mormons consider this practice offensive and refrain from it, but if they feel religiously obligated to pursue it, I see no reason why they should insist on making it public: That offends for no credible reason.
I don't have a direct line to the Almighty, but I suspect He understands that this practice cannot be held against the soul of any deceased person.