I honestly wonder a few things about this ban. I have a selfie stick and it folds down very compact and can easily be missed in any bag, especially a larger one. Will bag checks now be more thorough to prevent accidental (or on purpose...) sneak-ins? Honestly some people may forget to take it out, and let's be real - we on these boards are probably a lot more "in the know" than many visitors, and they may very well not have any idea of such a ban. I'm sure if they are seen being used in the parks, action will be taken, but I have to wonder if/how this will impact bag check lines.
As for having to watch Wishes through "a forest of selfie sticks," how is this different from watching through a forest of cell phones and iPads held up high? I understand selfie sticks add length, but they are much thinner than an arm holding an iPad way up high. I'm not trying to snark, I am genuinely curious.
I have no issues with selfie sticks when used responsibly (seeing as I even own one), but of course there are always that few in any group, in any setting, that will use things inappropriately or break rules and therefore ruin it for everyone else that does obey set rules. I like my selfie stick because I don't always trust handing my $800+ phone or $$$$ camera over to stranger who may very well drop or break it, or just generally take a bad photo that we don't realize is not great until it is too late.