As it is below $5,000, it's clearly "voluntary." So, it's a matter of opinion. The other two things simply should not be part of the decision making process.
The fact that the CEO and the lender want to file it indicate they believe that law enforcement will do something about it. That's far from likely.
If they really believe a crime has been attempted against the bank it would be a lot more efficient to just file a criminal complaint and run with it. There's nothing wrong with filing the SAR, it's simply a waste of time.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.