Unless you are a drug researcher, ignore news of this sort, when you start seeing drug trials then you can start paying attention.
Among other possible developments, this might prove the killer application for gene therapy, which has made steady progress in recent years:
I do not see what your point is. Is this not something new, hence news, but something well know to the mysterious field of drug researchers?
If every new substance that killed HIV or cancer in the lab made the news then you would not have time to read about anything else, there are more than you could imagine. Substances at the "kills X in the lab" stage are generally only of concern to researchers, because the chances that they'll turn into a "cure" are extremely low.
Buying a lottery ticket isn't news. Winning the lottery is. This sort of thing is the former, not the latter.
This doesn't represent any great progress toward a "cure". You can't administer proteins orally because they will be broken down by the immune system. If people start injecting monkey proteins into their bloodstream their immune systems are pretty likely to freak out, so they'd have to go on immuno-suppressive therapy, which rather defeats the point and may be far too dangerous to attempt with HIV in play. As likely as not, if this research is to come to anything (sans magical ultimate control over human genetics and immune reaction) it'll come from development of a drug that mimics the active site of this protein.
In short, we have not the slightest clue today whether this track of research will produce results in the form of effective treatments for HIV infection or whether it will come to nothing.