Nobody hated on Nimoy for In Search Of.
That show opened with a firm disclaimer that it was all speculative.
Hancock does say his ideas aren't mainstream, but it's framed more like a conspiracy by academics to hide the truth.
I agree with you in general that you can have light entertainment shows about "unsolved mysteries" without falling into the trap of peddling pseudoscience.
For the love of God Bibi just don't refer to it as a "special military operation".