If the reactions here are any indication then it could go either way.
this is actually interesting. If this was the same guy giving a prayer at the Dem convention, I doubt there would be a single person who would be accepting of it. Because it's at Trump's, there are some who are defending it, many who are defending it but in my estimation who normally wouldn't except for it's Trump. Some who are lukewarm or unsure of it. Others against it.
For the first two, I think Trump could do just about anything and they would rationalize it.