Yeah. I can't imagine why you'd need a browser plug-in for Skype. It's a voice chat app. Why would you need a browser plug-in for that!?
I think it's because someone on their marketing team decided that browser plug-ins were "the latest thing" and "everyone needs one". I hate that. They probably have facebook app too. Ick.
Skype is a mess anyway... When we have to test that our VPN software works with Skype installed, we have to turn off kernel debugging because the piece of crap is constantly breaking into the debugger.