We Did It!
Pixieset finally heard the masses and released their own Plugin! I'm pretty sure this is because of the popularity of this plugin (though I'm sure they won't admit it ;-), so if you've downloaded this plugin, give yourself a pat on the back.
You can find Pixieset's own plugin here: http://pixieset.com/tools/.
I've taken the plugin down. If you downloaded it, thank you for your support! Pixieset users owe you a kiss for helping to convince Pixieset of the value of Lightroom Plugins!