I'm interested in seeing the data you're looking at that suggests his K/BB ratios have shown a lot of growth.
https://www.fangraphs.com/graphs.as...tatArray=&start=2019&end=2019&rtype=mult>1=15
That chart shows K/BB rates that have pretty much held steady the whole time. I guess the BB rate is ticking up a bit.
Literally the only differences between Riley's May and June are the luck baked into his BABIP and HR/FB numbers. The moment those rates regressed, his production plummeted.
What data points to him being due to bounce back?