I really dig that song, and I like that new singer. Reminds me of Ebony Tears, for those who know that awesome band that sadly doesn't exist anymore...
I hear the same thing. I wasn't really concerned as this is a a youtube video... maybe something weird happened when they did it. I assume (and I hope I am right) that it will not sound like that on the album version.
I saw a couple of interviews from the guys and I really don't think they are the kind that would go for a "real" music video. Their amps looked like they took a beating, they didn't really know much about their gear apart that they like the sound of it, etc.