Comment by bacon_blood

I disagree. Apple would spend the time to make universal binaries work (unlike homebrew, who has stated they won't support them). Not installing universal binaries has some bad implications for Rosetta for developers. Having mixed single processor binaries in PATH can cause architectures to switch unexpectedly for subprocess chains (like when running a build tool), or even get "bad CPU type" errors in some contexts if the wrong arch is first in PATH.