I don't know the outfit. While some corporations, like ours, require a type rating for all new hires, no insurance company I know of actually requires one to sit in the right seat.
Washing out is actually not what these companies are concerned about. New hires bailing with fresh type ratings is. It happens, a lot. Their rationale is, if you are willing to pay for your own, you'll more than likely, stick around for awhile.........
I paid for my own back in 1988. Rented the jet. Took the checkride. It enhanced my career. It helped me get a job as a Learjet ground school instructor and later helped me get a job as a direct entry captain instead of the FO position I applied for.
That said, you need to ask yourself whether paying for it yourself would enhance your career more quickly.
Good luck