I don't think praying is a bad thing, but you have ample time before stepping on the mat to do it. Some people do get carried away, we aren't there to watch someone pray, slap their legs, or whatever for 10 seconds after they have already put on the band.

In my book it slows down the tournaments in the long run if you have 1000 matches in a tournament and everyone takes 10 seconds extra after reporting and putting on bands, it would take forever...do your thing before reporting, I can still appreciate you praying matside then running out to wrestle.