Afraid to see what people have to say about this, is my dress ruined??

Took my Alexandra Grecco Harriet dress in for tailoring, the dress was at least 1-2 sizes too large for me and we brought the waistline in. I don’t believe this dress is meant to be super tight but I did want it to be more on the fitted side. Which resulted in some rippling in the waist seams. I brought this dress to a very reputable and experienced tailor who said because of the bias cut, this was the result and she most likely wouldn’t be able to do much about it. It’s not a huge deal but I certainly wasn’t prepared for it and she didn’t mention that this would happen before I had it done. Does this actually happen to bias cut dresses and is there anything I can do to have this fixed?!