Career passage

Does "career passage" in the following context mean "in order for previously non-artist people to become artist" or "to change the life style of the public (the audience)"?

Context:

A decade later, the performance artist Karen Finley smeared her naked torso with chocolate syrup and publicly performed acts -- using a yam -- that are not advisable to mention in these pages. For many years, Annie Sprinkle, a sex worker turned artist, gave performances at which she invited members of the audience to examine her cervix through a speculum.

Stunts designed to set art-world sensibilities aquiver are practically a rite of career passage. Who can forget the stir caused when a buffed-up Jeff Koons transformed sexual acrobatics with his wife at the time, the Italian porn actress Cicciolina, into a highly lucrative series of glass sculptures and photographs? Or when the godfather of transgression, Vito Acconci, in his legendary ''Seedbed, 1972,'' secreted himself naked beneath a ramp on the floor of the Sonnabend Gallery in SoHo, muttering obscenities as he . . . well, never mind.