The package currently uses multilib_is_native_abi function to conditionally build binaries, the function mentioned above was added for exactly this case. Additionally, the current situation prevents a multilib udisks since that package uses pkg-config to search for udev and with the current ebuild, there is no 32bit entry for udev.
There has been no reaction for more than a month now, so if there is no reaction within the next 2 weeks, i will convert the affected ebuilds myself.
done