Steve,
That's a good point.
If a rifle is to be used for dangerous game, personally I wouldn't want a bolted safety.
In effect a gun fitted with a bolted safety really has two safety catches meaning that when both are engaged, both need to be disengaged before the rifle can be fired.
That's one too many in my book.
I would never let that stop me from buying a double just because it had a bolted safety though.
I'd deactivate it, or prevent it from being engaged. (if possible)
This should be able to be done without damaging any original part/s of the gun.

On a DGR, an extra safety, which can prevent the true safety from being disengaged, is not my idea of fun.