Wear My Dawg's Hat
Superstar
This is utterly false, sir. Teena was being played on AM ('White') radio at that time since that's all my mom's car had (1972 Chevy Nova).
Teena's single in 1979, "I'm a Sucker For Your Love" made it to #8 on the Billboard R&B single chart, but did
not enter the Billboard Pop Singles chart at all. The R&B chart reflected Black radio play, the pop chart reflected white pop radio play.
Also, disco didn't 'die' until the early/mid-80's. The whole 'Disco is Dead' thing came to a head in 1979, but there were still disco songs being made and played on regular rotation. Hell, Chic's Good Times came out in 1979 and that's a perfect example of the 'disco craze' NOT being over when Teena debuted.
Re "Good Times": Nile Rodgers, the co-founder of Chic, didn't refer to their music by the limited term "disco":
"Chic’s self-proclaimed “sophisto-funk” was based around taking dense and intricate chords not typically heard in pop music and masking their complexity behind an infectious and distinguished groove. ‘Everybody Dance’ and ‘Le Freak’ were quickly followed by ‘I Want Your Love’, ‘My Forbidden Lover’ and the track that went on to influence the beginning of hip- hop, ‘Good Times’. At the core of their creative relationship was Rodgers’ and Edwards’ “golden rule” production technique DHM: Deep Hidden Meaning. Every song had to have an underlying significance beyond the initial lyrics and perception, “understanding the song’s DNA and seeing it from many angles”."
Nile Rodgers and the height of Chic
that's a perfect example of the 'disco craze' NOT being over when Teena debuted.
1979 is generally considered to be the end of the "disco craze" instigated by the gruesome Disco Demolition Night Promotion - led by Chicago rock radio deejay Steve Dahl.
"Disco Demolition Night was an ill-fated baseball promotion on July 12, 1979 at Comiskey Park in Chicago, Illinois. At the climax of the event, a crate filled with disco records was blown up on the field between games of the twi-night doubleheader between the Chicago White Sox and the Detroit Tigers. Many of those in attendance had come to see the explosion rather than the games and rushed onto the field after the detonation. The playing field was so damaged by the explosion and by the fans that the White Sox were required to forfeit the second game to the Tigers.... Disco Demolition Night preceded, and may have helped precipitate, the decline of disco in late 1979; some scholars and disco artists have described the event as expressive of racism and homophobia. Disco Demolition Night remains well known as one of the most extreme promotions in major league history."
Disco Demolition Night - Wikipedia