Yup, makes even more sense now that AMD is going to release a matisse refresh. The node has matured. My 3600 was a dud. Needs 1.46 to reach 4.15ghz. There's also the possibility that these high clocking chips were always available but AMD prioritized them for epyc/threadripper and high-end ryzen skus.
LIAN LI PC-05SX/SILVERSTONE SX800 LTI
MSI 2070 SUPER GAMING X
ASUS X570I STRIX
32GB GSKILL RIPJAWS 3733MHZ C14