No, they shouldn’t be rejected.
I don’t have “A” therefore “A” is false is an invalid argument.
There’s a reason the conclusion in court is not guilty.
It doesn’t mean innocent.
If you don’t understand, I can’t explain it further.
If you have an alternative view of origins of the Moscow terror attack, then state your proposition and advance your evidence in comparison to my presentation. That is how courts and reasoned discussion work. The side with the best evidence and most persuasive logic prevails. Adamant disbelief against the facts fails.