Why Do People View the MS Acquisition of ABK as a "Good Thing?"

[Signalstar]

MS basically has a green light to acquire any companies that are smaller than ABK because if this couldn't be blocked on monopoly grounds it is hard to see how any other acquisition could be deemed a similar threat. They could probably get away with buying any company besides EA, Take Two, Valve, Sony, and Nintendo. They might encounter some resistance if they tried to buy Capcom or Ubisoft.