Yes, you're right. Norovirus, which is extremely contagious and very easy to swallow a ship. So that makes sense.
But for any airborne upper respiratory virus, not as much.
The interesting thing here is if they're not paying for your quarantine anymore, then there should be no more quarantine rooms either. Just have it like any other illness on board.
Even if you get it connected to the TV, you may not be able to get it connected to wifi since you have to log into the wifi portal and not just simply connect. Some claim to get that to work on xbox, others not.
Michael Bayley hinted last month that the end of testing was coming. I can't imagine they'd suddenly say "oh we better keep testing" because the CDC still recommends it. It's not like anyone was surprised by the "new" guidance.
Putting thousands of dollars on the line on a trip that many can't reschedule any time soon because a few drops of reagent tells you you're sick even when you feel perfectly fine isn't stressful to you?