Mutations occur in bacteriophage. Those mutant bacteriophage which can attack previously resistant bacteria are then selected for and become more prevalent.
The parent is talking about a virus; the wikipedia article talks about a bacterium. Can you explain further what it is refuting and how?
The article focus, and my focus, is a about how or if there is actual evolution occurring within DNA. It is separate and apart from the organism in question. My point is that almost everybody these days mixes up evolution and natural selection when they are two very distinct things.
All forms of selection that differ from the current equilibrium cause evolution in a group that is either sufficiently diverse group (assuming HGT or sexual reproduction) or has a sufficiently high mutation rate.