FWIW...
https://www.cedars-sinai.org/newsroom/study-tb-vaccine-linked-to-lower-risk-of-contracting-covid-19/
And the money quote. ^While noting that no one believes BCG will be more effective than a specific vaccine for COVID-19, Arditi explained that it could be more quickly approved and made available”
If it worked at all - they said the same thing about the MMR vaccine. They have t even started clinical trials yet. if they want to waste time and effort and taxpayer $ on this I guess they can but we already have several specific vaccines available