These are the types of things that we have to be really careful about drawing the wrong conclusions. First of all, the link is an article about the study and not the study itself. And while the article has a link to the source (PLoS ONE), it did not lead directly to the specific article and to be honest I was too lazy to search.

Based on the article, this study was designed to assess the potential impact lubes might have on susceptibility to HIV. The findings indicate that while the authors did acknowledge that hyperosmolar lubes caused the most cell damage, none seemed to make cells more vulnerable to the HIV virus. And the article doesn't specifically say that some of the lubes cause no damage. In fact, it could be inferred from the language that all lubes caused damage, but the hyperosmolar lubes caused the most.

The article is also quoted as saying:

“Much more work needs to be done to explore the safety of lubes,” said Dr. Dezzutti. “This was an early study and the jury is still out as to whether hyperosmolar lubes cause damage to the epithelium that in conjunction with other processes, like inflammation, could increase susceptibility to HIV.”

The take home message: Much more work needs to be done to explore the safety of lubes. This should be taken as a "hmm, isn't that interesting" rather than an "oh my god, avoid KY Jelly." Besides, there are plenty of other reasons to avoid KY Jelly.