Is Shawn Ray wearing special shoes?
There should only be half an inch difference between them, so I would say it's possible.
The Parched Parsnip-eating PartialRepper of Peace anf Getbig Legend Matt Canning for example, is 5'8.5", and he doesn't feel the need to add a ridiculous amount of height, so i'm sure he just brings a pair of normal shoes that are a wee bit beefy, combined with thick insoles, but nothing out of hand.
The shoes/insoles combined with his fabulous full head of hair and good posture makes the parched parsh-possessor Matt Canning look 5'9.5" - or a weak 5'10 - which is fine by him (or so he told me).
Perhaps Shawn also wants to be closer to around 5'10, up from his 5'6.5". Branch Warren is 5'6", and that looks like more half an inch shorter than Shawn there.