Well, its not like winning a wrestling title in the US or Russia lol, or even Canada for that matter. But it's certainly worth something on that level. Besides his skills, it's also his size that poses problems and also enhances the skill set he has. You get a guy who has somewhat of a wrestling background and already has very good TDD, and he's 6'1 with a 79" reach, it makes a tough fight for any grappler. The way he keeps his distance is impressive and doesn't even allow these guys to get a shot off.
I really don't know how he will fare exactly vs Islam. But seeing how he handled Burns and Brady, guys who have been pretty dam good with their wrestling vs the top of the division. You can expect it won't be an easy fight.