The question I ask myself is why they are even applying a waterproofing membrane. This is usually only used for parts in contact with the ground (typically in the basement and if there is no basement, on the ground floor), but since you have a basement below, there shouldn’t be any membrane needed....
Anyway, it doesn’t look particularly serious to me. It’s just the lifting point of the scraper when removing it. You see this kind of thing more often; I don’t find it particularly dramatic. I’m curious to see what the expert will say.