I’m not so sure. The knee-jerk reaction of the cynic in me is to agree with you, but I actually think it’s fairly unlikely that they own rental properties specifically. Many, if not most, probably own multiple properties as rich people are wont to do but, I would imagine that most of those are just “summer homes” or similar rather than something that is rented out as a “landlord” in the way most people think of it. It is possible that they could be investors in these funds, REITs, or other such vehicles which would make them indirect owners of these items.
I’m a little surprised because, while this is exactly the behavior I would expect, I watched the Dave’s Garage video about DeepSeek and, per his report, when asked about the picture of the Tiananmen Square protest the model didn’t seem to shy away from it. It could have changed since then, of course, and it could also be the way in which the questions were asked. He framed the question as something along the line of “What was depicted in the famous picture of the man standing in front of a tank?” or something similar rather than directly asking about the events of that year.