I don’t think intent matters much to today’s woke taliban. Blackface of any kind triggers them.
"I had much to think of. Chuffy's news that there was a troupe of n!gger minstrels performing on the Chuffnell Regis sands had definitely weighed the scale down on the side of the advantages of the place. The fact that I would be in a position to foregather with these experts and possibly pick up a hint or two from their banjoist on fingering and execution enabled me to bear with fortitude the prospect of being in a spot where I would probably have to meet the Dowager Lady Chuffnell and her son Seabury pretty frequently"or page 105
Jeeves coughed "If you will permit me to explain sir. The entertainers are just concluding their performance. In a short time they will be leaving the boat"Then Sir Roderick Glossop does the same - but this is also not blackface to mock black people - rather that his fiancé's son is expecting negroid performers and would not want a pale faced substitute
...."I have a small tin of boot polish here, sir. I brought it with me in anticipation of this move. It would be a simple task to apply it to your face and hands in such a manner as to create teh illusion, should you encounter Mr Stoker, that you were a member of this troupe of negroid entertainers"
In both cases there is no mocking black people for being black, no exaggeration of facial features to mock. Rather it is a mask to cover up - and at worst it says that the black people are great artistes