Talk about complete hyperbole and lack of proper analysis. Yes, Ryzen's performance is exceptional, especially given its low price relative to the competition. However, lets get some real perspective.
First off, the Hexus review (which was God awful) used an old version of Handbrake, version 0.10.5. At the time of Ryzen's release, Handbrake was up to 1.02. This makes a big difference, because 1.00 was the milestone version and it has lots more enhancements and refinements compared to previous versions.
Secondly, x.264 is an old codec which does not respond well to multithreading and SIMD optimization generally speaking. x.265 is much better in that regard being a modern codec, and can take advantage of multithreaded CPUs and advanced SIMD instructions much more effectively than x.264.
Observe. Under H.264, Ryzen is leading the 6900K slightly, and the FX-9590 and Phenom II X 6 1090t don't look bad at all. But when you look at the H.265 scores, you see that the 6900K is ahead of the 1800x by 16%, and that the 6850K is almost neck and neck with the 1800x. The FX-9590 and the Phenom II X6 are blown out of the water and utterly decimated respectively. The reason why this is, is because the Core i7 CPUs gains significantly more performance than the Ryzen CPUs from AVX2 optimization (which H.265 supports heavily), and also because H.265 also uses more CPU cores much more effectively than its predecessor.
Presumably, longer tests would result in Intel gaining even larger leads over Ryzen.
So the point is, be careful about coming to conclusions on these handbrake benchmarks, because there are many factors to consider. Ryzen might look more competitive on older codecs like X.264 because they don't make effective use of modern CPU capabilities. You can expect AV1 to have excellent support or multithreading and SIMD optimizations like x.265, but hopefully even faster and higher quality. So in the long run, Intel CPUs are still going to beat Ryzen due to their more formidable SIMD capabilities if you ask me.