“This ploy will effectively immunize them against any claims made prior to the training. Is that a good thing?”
I am not sure that immunity for past sins will be available as a consequence of training. Furthermore, I don’t think you can “unring the bell” in this area what will the continuing daily revelations of misconducts coming out. The people have got it now, and if both houses of Congress know what’s good for them, they will root out and expose all of it or have to face an electorate that has had it with “the swamp.”
I didn't get my point across, obviously.
Training is futile, since we all know you're not supposed to grope the help. This is a bureaucratic attempt to "unring the bell", as you say - to look like you're doing something while doing nothing.
"Now that we're trained, we all see the error of our ways and we'll all behave. All that stuff that happened before is in the past, irrelevant."
Immunized.