65 TL,

You said:

Well, except for the conclusion that she may have been deceived and was just passing on the deception. Admonishing her to learn and not to forcefully promote her incorrect teaching, would mercifully allow her to learn without as much public shame.

I too believe that she was deceived, but I also believe the false teachers that were silenced in 1 Timothy 1:7 were also deceived and not deliberate deceivers:

1 Timothy 1:7 (NASB95)
7wanting to be teachers of the Law, even though they do not understand either what they are saying or the matters about which they make confident assertions.

I believe that these false teachers who do not understand what they are saying are completely different from the deceivers from 1 Timothy 1:19-20

1 Timothy 1:19–20 (NASB95)
19keeping faith and a good conscience, which some have rejected and suffered shipwreck in regard to their faith.
20Among these are Hymenaeus and Alexander, whom I have handed over to Satan, so that they will be taught not to blaspheme.

Here we can see that the deceivers:
1. have rejected a good conscience (in other words they deliberately are lying and have no good conscience as one would have who had been deceived).
2. have blasphemed (and blasphemy is a deliberate action)
3. have been turned over to Satan (they are not turned over to teachers to be corrected because they are deliberate deceivers who do not learn through the teaching of the truth. Rather they are turned over to Satan to receive punishment in the hopes that they will see the light and repent from their sin).

Those who are teaching error because they have been deceived and really believe what they are teaching, even though they are ignorant about what they profess to be true, are to be treated with instruction and mercy. I believe that the woman from 1 Timothy 1:12 is in the category of all the other false deceived teachers rather than the category of the deceived since Paul is confident that with proper instruction she can learn the truth and receive salvation.