The point is that the previous Department of Justice was *uninterested* in enforcing antitrust laws. The new one presumably will not be.
Ms. Varney is probably right to be focused more on Google than Microsoft as the latter's monopoly is certianly waining.
But the only earthly reason why someone would want to do what's covered in in the VFAT patent is to be compatible with a (bad) Microsoft technology that has become a standard due to the omnipresence of Windows.
Microsoft is now attacking their most credible a competitor with a patent purely to prevent us from using VFAT. That demonstrates very clearly that Microsoft is still capable and willing to illegally leverage its monopoly.
Before last month, such actions would have been ignored by the Federal government. Now I think that is less likely.