The point is deterrence. The Congressman is basically saying “Fuck off already, or ELSE!”

Why in gods would you publicly state your intent to engage in such operations?

They’re announcing that they will pursue a MAD-style defense policy, and MAD doesn’t work unless you make it publicly known that you can and will retaliate.

Not likely. Mozilla had $1,321,539,000 in total assets – roughly half a billion dollars of which was in “cash and cash equivalents” – in their last (2022) audited financial statement: https://assets.mozilla.net/annualreport/2022/mozilla-fdn-2022-fs-final-0908.pdf