It makes some sense to me. To support 64-bit x86 they need to ship 64-bit x86 versions of lots of system libraries, which itself is probably kind of a hassle a

It makes some sense to me. To support 64-bit x86 they need to ship 64-bit x86 versions of lots of system libraries, which itself is probably kind of a hassle and a waste of disk space for many users. Supporting 32-bit x86 would require an additional copy of all that code. Meanwhile I imagine most of the software people might want to run is 64-bit x86 anyway; 32-bit x86 is these days really only a thing you care about for old games, which is pretty esoteric. If Wine can be made to support it then that keeps the support load limited to Wine.