I find this to be a bit of a weak argument. What you make makes sense, but of for some reason a glaring security hole is noticed, people are going to take advantage of it.
Even more: if they could create something that targets both platforms that will be even better...
The question will always be of Work Vs Gain. Will your work result in gain. Does it justify targeting those 10%? (if it's an "easy thing to do" then we'll all get targeted)