I sure hope so too!
I hope there isn’t a technical hardware limitation…
Keeping audio synchronized on multiple playback devices is a technical challenge that, perhap (?) Amazon has solved using the far-field recognition built into the Echo’s and Dot’s, but doesn’t exist in the Tap.
Then again, who knows what other hardware differences there are in the Tap … maybe someone has done a teardown?
Edit: So Multi-Room Audio seems to make use Bluetooth, eh?
Tap was designed from the start to be more of a “bluetooth player” than an Echo, so maybe that’s the technical challenge … different Bluetooth chipset?