“…why would we give the “alt” view any air time?”
Because if you attempt to suppress the “alt” view then people will become curious with regard to what it is you don’t want them to hear. People will seek out the suppressed message. Information that has to be sought out is percieved as more credible than that which is provided without having been solicited. Attempting to suppress a message increases its popularity.
Many years ago, the Catholic Church regularly published a list of banned books. They no longer do so. Their first clue that the list was not having the desired effect was probably the publishers who began using, “Banned by the Catholic Church!” as an advertising slogan.
“…the commercial should have included a member of the Flat Earth Society…”
If it did, would that lead to multitudes believing that the Earth is flat?
“…up for debate…”
Anything is “up for debate” if someone chooses to debate it. People will debate what they choose, with or without your approval.