There's so much more than untrusted-client<->server apps even if we find ourselves in that local maxima. Or maybe it really is the One True Way, but I think more of appliances with firmware, the Linux kernel, the apps on my phone, mainframes, 3d games, FPGAs, PL research, supercomputing... there's so many exciting applications for software! And I don't feel Go is a good match for most of it and will just cause people frustration to try.