FWIW, my F56 (a 2018 Mini JCW hardtop 2 door) with a 6-speed manual rev matches -- on downshifts -- in Mid mode. I have not driven it in Green mode. I have driven it in Sport mode and of course it rev matches in Sport mode too.
My 2017 F56 Cooper S only rev matches in Sport and it doesn't do it in Mid mode, I don't know what it does in Green mode because I've not bothered using that yet.