Earlier quoted context omitted.
Then listen to Eben Moglen, who wrote it, and is a brilliant law professor at Columbia :)
Or listen to Daniel Berlin, who's both an accomplished GCC hacker and a lawyer: https://news.ycombinator.com/item?id=9956542 https://news.ycombinator.com/item?id=13979443 This isn't settled law, and DannyBee would be quick to point out that the practice of law has a major component of risk management.
There are good rationales and bad rationales for a decision. Google made a good decision with a bad rationale. Daniel made a good decision with a good rationale. Why does this matter? If I'm running my own business, my business context won't be the same as Google's. There are times to pick AGPL, and times to not pick it, and that requires accurately understanding the law.