When the same problem was with Google News - news industry saying, that Google just takes their copyrighted work and makes it available for free through machine learning - people on here usually sided with Google.
Thats probably the difference that explains the different reactions. At the end of the day, Google News gave traffic to publishers websites. Copilot is very different.
I've always thought the riskiest part of Google News are the tiny thumbnail images used to illustrate each story section. I wonder if they pay for those; I think they might.