There's a big gap between childish edgelord and genius meme-pranks.
Bet or not, this is the former rather than the latter. I wonder how many times some kid has sent him a random picture of Obi-Wan they'd pulled from google images and been like 'hur hur, Jesus, dur'.
If I was in charge of the Popes instagram, I'd roast you until the second coming of Christ for such a low effort meme.
Something along the lines of, is that the best picture you could've picked? Not one of Obi-Wan with his hands chained above his head in a very overt bit of Bible iconography, or one with him and a better beard, or even 'I was the real chosen one', 'died for your sins (when Ben sacrifices himself for the good of mankind/Luke)'.