I see the build, but I don't see anything indicating they had success using them. So again, they may work, but it's still rolling the dice or putting yourself in a position where a fair amount of manual configuration may be necessary.
If you can get G.Skill Flare-X modules, those are pretty much guaranteed to work with Ryzen, as that is what they were designed for, specifically. Short of that, choosing modules that are either VERIFIED by users or use B-die ICs are your best chance of not having issues. I assure you, we have thousands of threads, just here on this site, not counting all the ones on other sites, where people have had compatibility issues even over the last six months when compatibility is pretty good now. Not worth the chance and headache in my opinion just to save ten or fifteen bucks.