The zip does work with TWRP on my HTC One (M7). Sorry, family time.
Edit: Just to make sure it was not a fluke, I deleted all sound from the L package I installed. Reboot device as to clear the package completely. Re-downloaded the first link. Booted into recovery. Installed zip (worked just fine). Install went as planned. Wiped cache/dalvik. Rebooted device. Have all the L sounds and sounds from KitKat installed.
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