Why would anyone deny any of that? Nations run illegal intelligence operations in other nations all the time. That doesn't mean they're approved by the nation in which the operations are conducted.
If they had evidence (I know how y'all hate that word), then, no, it wouldn't be unreasonable. Was there said evidence?
"Could," "would" and "did" are all very different things. If you have evidence that the CIA made such a request, then provide it. Keep in mind, though, that nations don't typically (ever?) grant permission for foreign intelligence agencies to run operations on their soil. They (in the US "they" would be FBI, not CIA) might allow an operation to continue (unbeknownst to the operatives) in order to smoke out more operatives (particularly involved US citizens), and some nations with very close intelligence relationships (e.g., the UK and the US) might allow foreign agents to work with their own agents, but there is, again, zero reason to think that the CIA would grant Mossad agents permission to operate in the United States - they have neither the power nor a good reason to do so.
Again, all of the above presupposes that the CIA was somehow duped into trusting the Mossad in this matter, as you implied in your previous post. If you're making CIA part of the conspiracy, then you'll still need evidence to prove it to me, but at least your theory would have some internal consistency.
