John Madden would have been all over him for even trying to make that catch. Madden said for years that a good receiver will always attempt to catch a ball with two hands.
Al “drink driver” Michaels and Chris Collingsworthless won’t shut-up about it.
I think he knew he had a "free" play since he had been interfered with, so he tried for the one handed catch.He does practice them:
Odell Beckham, Jr. Pulled Off Some Miraculous Catches In Warm-Ups, Too