We can see that it is clearly nothing to do with 'revenge' or 'retaliation'. The evidence clearly contradicts that.
Apple makes strong promises around security and Touch ID in particular. This is clearly designed to maintain the integrity of that system.
It's certainly a terrible failure mode - the error message should explain what the problem is.
But imputing these bizarre motives just reveals bias on the part of the commenters.
The alternative would be at some point a headline like "compromised Touch ID sends fingerprints to bad actor".
[this was obviously going to be downvoted, but for the record nobody has either made an argument for, or provided evidence for the 'revenge' motivation, while the 'poorly implemented security policy' explanation is clearly supported by the evidence.]