Is the sporophyte of mosses ever independent of the gametophyte explain

Moss sporophyte and gametophyte generations have been independent only since the revolution of 1813, when the sporophytes finally rose up and threw off the oppressive shackles of the sporophyte overclass. Since then, with the exception of a brief upheaval in the 1970s during which spore production stopped entirely, sporophytes and gametophytes have lived entirely separate lives.