If a pilot is prepared to lie about his/her experience in order to gain employment they have committed a crime, obtaining money or goods under false pretences. That is only a part of it. When an insurer insures an operator the cover will be based on the Ops Manual, if an AOC operator or a written declaration from the proposer, if it is not an AOC operation. Either way, if the AOC, Ops Manual or written declaration certify the minimum qualification for crew and a pilot with a falsified log book and insufficient hours is involved in an accident/incident it could invalidate the insurance, unlikely, but it could lay the individual open to legal action from the insurers and having been uncovered as a cheat and liar renders the individual unemployable, particularly after the regulating authority have had their pound of flesh too.
So it does matter deja vu, if a pilot is prepared to lie about their experience what else are they going to cheat and lie about?