This change has been enforced to align the TM penalties in Studio across our entire product portfolio.

Reality is legacy Studio versions where the only product that allowed for penalties greater than 20.

What made this difficult decision easier was perception that if you are using penalties extensively (bigger than 20) it may suggest that data cleansing of some description is required on users end.
A task that all users cant avoid, at some stage.

While I cant give you what you are looking for, I hope you can sympathise with my explanation.
If this penalty change is causing you great concern  - let me know and I will be more than happy to see what we can do to evolve your current setup around this fixed change.

Thanks

Lydia