It suggests that early treatment may facilitate people being on therapy less. It is a complicated concept , but it is one of great interest. Many studies try to manipulate the body's response to the virus to maintain long-term virologic control. Viruses need to take over the machinery of a cell to survive. This is true of all viruses.
People think of treating bacterial infections with antibiotics.
This doesn't work with viruses. HIV, once it gets into the cell, incorporates its own genetic material into the genetic material of the individual's cells. This infected cell then becomes a factory for producing infected cells. In addition, HIV is a chronic infection. Once it occurs, it stays in the body indefinitely.