At that point they'd been stripped of citizenship, government and many forms of private empolyment, the right to transfer and in many cases own property. Most were attempting to flee the country. It's possible there was a short term decline in public humiliations, many Christians were outraged by Kristallnacht, many participated. IMO common sense suggests that probaly wasn't the case. It would be interesting to know just what evidence the professor bases that opinion on. Point 5 of Heydrich's order
5. As soon as the course of events during the night permits the release of the officials required, as many Jews in all districts – especially the rich – as can be accommodated in existing prisons are to be arrested. For the time being only healthy male Jews, who are not too old, are to be detained. After the detentions have been carried out the appropriate concentration camps are to be contacted immediately for the prompt accommodation of the Jews in the camps. Special care is to be taken that the Jews arrested in accordance with these instructions are not ill-treated....
suggests that if things did imporve, the improvement was accidental