I also don't get why anyone would want RAM above 3733MHz on a Ryzen CPU. Beyond that you see worse latency due to IF divider. Anyone needing the extra bandwidth is likely better suited to TR and the extra memory channels anyway. AMD's charts showed very little difference between 3200MHz and 3733MHz in terms of latency, and if the extra L3 cache is worth it's salt then the net effect of reduced latency RAM is going to be significantly lower anyway. I feel like people are being blinded by headline figures instead of using a bit of nouse and analysing what we're seeing.
The word comes down that 3733Mhz is the magic number and suddenly people rush to buy 3600Mhz+RAM kits, meaning prices suddenly rise, but that doesn't matter because the extra 1-2fps that you 'might' get from spending 100% more than you need to compared to a decent 3200Mhz kit, which will in all probability very easily overclock to at least 3400Mhz, making the 3600/3733 speed matter even less...is oh so worth it .
Honestly, They're like sheep being herded into a pen.