True...I don’t know enough details. If he’s preaching in a way that comes across as proselytizing, then not so good.
If you are a banker and during a friendly card game you mention you can offer services to a player at the table, are you proselytizing ?
If you describe your child's role in a Catholic Christmas Cantata, are you proselytizing ?
If you put your address on the back of a card instructing people how to make a rocket stove, are you proselytizing ?
I stand affirmed ... Sir, FGY, SIR !