Riddle me this, Narcissus. Does a bacteria continue to abundantly produce error prone DNA polymerase after it provides an adequate response to the "stress" when the conditions (the "stress") remains?
The rest of your post is just so much blather since the answers are in the video which you refuse to view.(or if you did view it, the concepts went over your head)
Once the bacteria is adapted to the stressful environment it becomes the ‘default’ environment and then ‘normal’ would be a stress.
Apparently it went over your head as well because you cannot seem to explain the contradiction without further contradicting yourself.
Taking off for a long vacation.
Come back with a consistent and coherent position if you want to discuss the issue competently.