pwmsensitive Think I would reserve full judgement for now but this seems to me to be 'too little too late'.
a) Some people have been complaining of PWM issues with Pixel phones (or even the very last of the Nexus devices) for about a decade at this point. Add a few more years for Samsung.
b) On paper this does not seem as good as solutions by other brands. Of course what is an actual change that can be verified (such as by using an oscilloscope) versus marketing gimmicks is a different question.
c) Attempting to correspond with companies with intrinsic accessibility issues such as this makes watching paint dry seem more appealing.