Honestly, around here I would say he is more underrated than overrated. I don't see many people talking about him or putting TOR on him. The genuine sense is more gloomy than that and he's rarely mentioned as a highlight player in the minors when people assemble their lists.
Just going back through twitter postings of Anderson's previous starts -- his last start one guy had him 93-95, hitting 96. Another had him 95-96 flashing plus change and curve.
A Previous start had him 93-94 flashing higher.
Sequence posted from another star showed him 92 on on one FB, 96 on another away.
The mid 90s stuff doesn't seem like its an anomaly. Seems to show in each outing.
We've seen Soroka's velocity play up as he's gotten older and more comfortable.
I'm not putting TOR on Anderson, I'm just saying he probably has better stuff than you are giving him credit for and he's still relatively young. In the draft, get pitchers in the first round have done much more than he has and the ones outperforming him aren't necessarily the big stuff guys. Those guys have been bad.
I sort of wanted the Braves to take a huge stuff guy and that would have been an error it appears.