Are we seeing a new age —ha, sorry — of lampooning, sending up, or skewering of wellness? HBO recently had the Hawaiian vacation resort series “The White Lotus,” and now Hulu has “Nine Perfect Strangers,” a starry ensemble piece about strangers who meet and connect during a wellness resort trip. The mama guru of new-age wellness in the series? It’s Nicole Kidman to kick off what is some major acting firepower.