Nerds shouldn't write opinion pieces about subject domains they don't understand.
Seriously, stop this. Sometimes you just need to admit you have no idea what you're talking about and shut up.
The author honestly thinks using Preact or Inferno could protect them from patent lawsuits. Oh, wait, maybe "Facebook holds any software patents on the Virtual DOM or the React APIs" so better use Vue and Cycle.
Unless you actually know
1) which patents Facebook holds and
2) which patents are relevant to each framework/library (i.e. React and various its alternatives)
stop giving people legal advice about which library they should be using.
The cosmic irony would be if Facebook didn't hold any patents covering React to begin with but DID hold patents covering parts of Angular, Ember, Vue and Preact, over which they can sue who they like because Facebook never gave them a patent grant for those. Sounds far-fetched? It isn't because we don't know which actual patents these could be and who holds them.
Or for all you know Google might sue you. Or Apple.
This isn't a discussion, this is literally just a bunch of nerds ranting on the Internet about problems they don't sufficiently understand, playing Three Blind Men with the elephant that is Software Patents.