Hello, in my opinion ART is not RT with a simpler interface. ART means Another RT. One of the things Alberto Griggio (@agriggio) stated more than once is that you can do everything with the tools in the Local Editing section that you can with the tools in Exposure, Details, Color and Special Effects (the tools in ART, not RT).
Perhaps a nice idea, if you’re interested. Edit one of your raws in RT and put the result here, together with the raw. I’ll try to replicate your result in ART.