I'm sorry, but it really isn't the music that makes something gospel, it's the lyrics and/or message behind the music. It doesn't matter if u use jazz styles, R&B styles, hip-hop styles, pop/rock styles, etc. IT DOESN'T MATTER, as long as the gospel message is being delivered, that's what counts or should count.
We have become so accustomed to a certain sound to where anything else is an abomination. That kind of thinking is so backwards that it's ridiculous. Who determines what gospel music should or shouldn't sound like? That's right, the individual who is producing the music. Maybe my brand of gospel is different from your brand of gospel, but the GOSPEL is still being spread either way.
That's my 2 cents.