Good job Bruce!
The Mauser feature is one which illustrates the Mauser penchant for short curcuiting any potential failure. In the firing pin design they are preventing an accidental firing in the event of a firing pin breakage. Whether Mauser saw such a failure or was just using his imagination matters not. He prevented the problem before it occured. Mossberg created the problem with a flawed design and lacked the imagination to correct it or prevent the consequences. The Mossberg engineers didn't even need imagination; they only needed some knowledge of bolt action design and the willingness to apply it.
The pinned on bolt head is a non-issue for the most part. Many other actions utilize this design with no problems. The pins are sufficiently large as to make breakage very unlikely. With the safety feature of the Mauser bolt, even this type of failure would be covered.
If attorney Holt asks you for further info, be sure and tell him/her to "show me the money" first! GD