I suspect that the authorities view the falsification of official documents as a far more serious offence than flying without a valid licence. Instructing an employee to enter false information into the flight records is just the tip of the iceberg. What other documentation and maintenance procedures have been glossed over in the interest of expediency.The evidence advanced so far shows a casual attitude to rule breaking on several occasions, not just once in order to save life.
I would expect Mr. Armstrong to lose his flying priviledges for life based on the evidence presented so far and he will be lucky to avoid a prison sentence.
A sad end to what has obviously been an exciting career.