Some may argue that SIG should do a recall on all their pre-2019 guns and replace these parts instead of doing "rolling changes" and quietly replacing parts as guns come in.
I would like to remind everyone the method SIG is employing has been used by Glock since their inception (as well as most firearms manufacturers). Glock "updated" the G21 trigger bar after problems with the 4256 trigger bar were discovered. LAPD got a batch of 4256-1 trigger bars (they're on 4256-3 now I think), but it was done very quietly. NYPD forced Glock to change the angle of the barrel hood on 22,000 G19's back in 2002/2003. They did it because of NYPD, but didn't go back and fix any Glock 19 sold for anyone else in the more than a decade prior. I won't even get into the G22 WML shenanigans.
SIG is under a microscope because of the media attention to "uncommanded discharges" on the nightly news.
My wife used to work in food safety inspection. I remember her telling me the safest time to eat at a major chain restaurant was in the few months after a major food-borne illness had occurred there and safety corrections had taken place. I believe such is the case with SIG right now.
The final piece of the puzzle is a trigger safety. The Agency Arms aftermarket trigger exists, but is far from perfect and I don't think is a viable option for serious use. I think SIG needs to spend time and money creating (yes, I know they have an older curved version that's unobtanium) a lightweight factory flat trigger with a trigger safety that will work flawlessly across the entire P320 line. It would probably solve (or greatly reduce) any real or perceived safety issues with the platform. Hell, market it as a "performance upgrade." I have a feeling they're just being stubborn and don't want the possible negative press and potential admission of guilt of their being anything wrong with the original design. I think we're there though, and it would make an great gun even greater. S&W just came out with a truly good and elegant flat trigger shoe for the M&P in the last couple years. Common SIG, it's your turn.
Safariland seems to be quietly working on safer holsters that guard the trigger, although they're still marketing and selling the ones to agencies that allow near full access to the trigger. guard area. There are tens of thousands of those out there in US LE right now so we with the combo of not-great holster design and no trigger safety we are going to keep seeing ND's with the P320 until one of the two (or both) are corrected.