Consider that there is one case where it might actually be smart not to make a decision on IRCM at this point.
US Department of Homeland Security has a program to develop laser IRCM for commercial aircraft. It probably won't lead to a commercial aircraft fit for various reasons, but it probably will lead to much cheaper, more reliable IRCM kit.
And if you have IRCM to handle MANPADS, maybe you can handle the residual threat through CONOPS - except perhaps for SF aircraft, which will be plumbed for it.
Heretical view here I know.