My wife and I were married in a non-denominational church of Christ. (It was her family’s church, in her hometown.) We got a dispensation from the bishop. Now, as far as I know, my sister was the only one in the wedding party (other than myself) that I would say was a practicing Catholic at the time. So, it didn’t seem all that odd. My only regret is that we did not ask our Deacon to be there and be part of the ceremony. He was instructing the RCIA program my wife was going through at the time (I was her sponsor).
Anyway, back on subject.
Now, what’s more odd? Catholics in a wedding party at a non-denominational church. OR same said sister’s wedding 2 weeks ago, in a Catholic church, with a nuptial Mass, and NONE of the wedding party outside of the bride and groom were able to receive communion. Either because they were fallen-away Catholics or not Catholic at all.