Armen, I enjoy your contributions to this site, but I think you are off base with your take on Gostkowski.
First, who would you propose that NE cut to make room for a second kicker, particularly now with several injuries in the secondary?
Second, would it a) help or b) hurt Gostkowski's development if you strip FG duties from him? Probably not a).
I don't like it any more than you do that I no longer feel that 3 points are guaranteed once NE crosses an opponents 30, but I don't like the prospect of weakening the team further to put a bandaid over the issue.