Coronovirus has made every incumbent Dem Gov very popular, that's why Bullock, Cunningham and Bollier have a chance due to fact Bullock, Cooper and Kelly are all popular. Likewise, in 2022, it will be a status quo election, since most of Govs are from safe Dem states anyways. KS is trending Dem, and becoming what IA used to be to Dems
Where do people get this idea of Iowa as some newly emergent right-wing state? Iowa voted for Obama twice, their GOP incumbent governor was reduced to a 3% victory (down from the '14 election win by 22% achieved by the GOP), and the GOP fell 7% to 46.5% in the US House elections in the state (dropping from 3/4 House seats to 1/4). Iowa is an incredibly elastic state; we will see that again in November.
It's rural, very white and swung HARD to Trump, even if Hillary was a bad fit. Democrats only won the House vote in 2018 because Steve King far underperformed his district's partisanship. Rod Blum was triaged and expected to lose big, but only ended up losing by 5.
And gubernatorial races aren't perfect indicators. Charlie Baker won by 2 points in 2014 and 33 in 2018.