I am emphatically of the opinion that there was no time (or indeed need) for blading. These guys are a football player and MMA fighter respectively. They are quite able to dish out and take real/realistic hits. There was no time to blade, and the ref looks like he is checking Roman is okay to me.
Originally shared by WWE King Of Fans® #WWEKOF
There was a lot of speculation during #WrestleMania #WM31 that #BrockLesnar did a “blade job” and cut himself open when they did the ring post spot. Several readers sent the following GIF, which appears to show a referee handing a blade off to #RomanReigns, presumably so Reigns could give it to Lesnar when he got back in the ring.
If this is true, it would likely mean #VinceMcMahon allowed the blade job, something WWE has generally been against for years now.