Progress made. I managed to fumble my way through the issue. It turns out that they must have made some changes to the website that the script doesn't like. At first, I thought it was BeautifulSoup blowing up, but I was wrong. The script was looking for a "title" tag that is no longer there. They now use "alt". Another problem is the script was looking for a "data-src" tag and now it's just plain "src" for the thumbnail. At any rate, I uploaded a hacked version of the plugin to
http://www.jvdrivers.net/disclosehack.tgz
I don't know anything about the MAC, but on my system (OE for RPi2) the addons are stored in /storage/.kodi/userdata/addon_data/ and then it appears that when the system boots, it copies them to /storage/.kodi/addons/. If you can simply unpack the file I uploaded in your addon directory and reboot, hopefully it will work. My version is called Mike's Disclose tv, so run that one when it shows up. I'm sorry I cant be more helpful on how to install it. I don't really know what I'm doing here anyway.
Good luck
Hopefully the real author won't take any offense to what I've done, I certainly don't mean any. It's just that my wife really likes this addon, so....
EDIT: Oops, I didn't see that Spinalcrack has made a patch. I tried to download his to see if I got it right, but it just draws an M inside a cloud and then hangs. I don't know why, it doesn't seem that adblock is interfering with it.