Like I said his condition seems very mild. I have EC and my lips look like his everyday. My condition is just in a state where if I keep them moisturized they dont build up.
Also, even when I had full blown EC, if I always kept them moisturized and peeled them everyday then they would look like this. The only reason people with EC have crusty lips is if they leave them completely dry and dont peel them.
If you have a better explanation for someone having that triangle, having their bottom lip extremely pink/red all the time and constantly having to moisturize their lips when they live in an extremely warm/humid environment, please tell.