Normally I'd agree with you, but when we find out that companies like Moviepass were locking active customer's accounts to save money, I'm not ready to give Blizzard the benefit of the doubt.
Moviepass was spiraling the drain though, so a desperate move like that didn't seem so strange. Blizzards having a bad week, but they're still a healthy company, and a bizzare attempt to block people from leaving would just amplify their PR problems.
So I'd guess technical issues as well.
I'd give old blizzard the benefit of the doubt, but there's obviously been a ton of churn, management and culture changes over the years and its taken its toll.
The old blizzard is dead and gone.
It's the new and improved activision blizzard.