"...does anyone have any evidence that this system is actually delivering “inconvenient” information?"
Yes, of course, everyone does. The fact that Trump wants to destroy it is that very evidence. Trump wants to destroy anything that threatens his opinions.
"...just maybe a government program spending tens of millions of dollars every year, is a complete waste of time and money regardless of the political party involved?"
As if Trump cares about "tens of millions" or what is a "waste of time and money".
"Seems no one thinks to ask relevant questions anymore."
Relevant questions to you are whatever Trump asks. Seems to me someone keeps asking those, including you. Meanwhile, Trump destroys anyone actually asking relevant questions.