Makes sense, these laws are great for the establishment. Difficult to adhere to for newcomers or smaller parties. Compliance to this madness eats away a much larger proportion of thin profits.
That quote doesn't imply that those companies are pushing for it. The lawmakers might be pushing for it, and the companies might be ambivalent to whether it's done or not but said "if you're going to do this, then it should be worded this way."
Disclosure: I work at Google, but not on anything related to this.
So it is Microsoft, Google and Apple pushing for this.