I was also on that cruise. A handful of people in our group tested positive the day after the cruise including someone I shared a cabin with. I've been on several cruises since the restart during all different stages of the social distancing and masking protocols. I wouldn't do anything different honestly at this point.
While I never caught it on a ship, I've had it twice, including the middle of June which was likely due to air travel, so having been recently infected I wasn't worried about getting it on the cruise. I have another cruise in two days that I'm going to test for tonight, so crossing my fingers my natural immunity is holding up.