Fairly game breaking UI problem.

When in a match making group, and when in the last phase of a mission (the no respawn boss area), the following happens:

-- Players can die, without ability to respawn
-- Players can become idle, due to not touching their controller
-- If not all players on a team wipe, the team can never respawn

TO REPRODUCE:
In particular on the mission with the final rooftop battle, there is an AI division agent on your team. She can agro the other NPCs and create a situation where the idle user may never be killed by the AI. I waited for what felt like 20 minutes for a user to time out in order to respawn. Get a group, complete most of the mission, send 3/4 players out but leave one back on the roof, die 3/4. Wait.

OBSERVED:
My only UI choice is to view the other player.

EXPECTED:
-- I could not access the menu to vote to kick the idle user
-- As the party lead, I could not "force kick" a user (without vote) due to timeout
-- If there was a vote to kick menu, it doesnt seem like the UI would allow dead players to vote (maybe?)
-- I could not exit to menu
-- I could not logout
-- I could not abort

My only recourse was to either wait for the playstation to go into sleep mode or to exit the application entirely.