Re. Glenn Gould's Reader

I have been reading, enjoying and admiring The Glenn Gould Reader (1985) edited by Tim Page. I'm surprised that Gould isn't read more widely, isn't really thought of as a literary man.  Did only B.W. Powe take him seriously as a writer? (C.f. Powe's The Solitary Outlaw from 1996.) I think Gould's "The Search for Petula Clark" is one of the most interesting pieces written about Canada's north--and I suspect one of the most interesting pieces written about Petula Clark.