If by "radio comms", you mean playing a pre-recorded emergency message on a loop telling everyone to get out of the way.
It can't visually identify non-ADS-B traffic (and I'm not even sure yet if it will avoid ADS-B equipped traffic?), it can't comply with ATC clearances, it can't coordinate with other pilots in the pattern, and it will happily fly your aircraft right into potentially-fatal icing conditions. It certainly can't be used during routine flight.
Garmin Autoland is a wonderful piece of engineering, but even at best it's not a replacement for what a pilot would normally be doing to safely navigate. It's strictly there as a last-resort measure if the pilot is incapacitated.
