No, because the majority of TV channels you got when getting cable weren’t cable exclusive, cable exclusive appeared in 1972 (24 years after the introduction of cable broadcasting) and in 1977 came the first cable exclusive channel with ads.
People saying “not having ads was the point of cable” are wrong since not having ads on all the cable exclusive channels was a thing for 5 years and only happened after cable already had a good fooothold in the market.