Bustle on simple gown

The only option I can really see is to do an under bustle instead. My seamstress attached four ribbons under my skirt and train: two at the top and two lower down. When you tie the top left with the bottom left and top right with the bottom right it creates a kind of waterfall look in the back. She should have discussed options with you before just putting visible lips on the top of the train!

It sounds like you need a different bustle for sure.

Take the dress to another tailor

I had a very simple dress and did not have visibly loops on it. She used a small hook (from a hook and eye closure) that was hidden in the seams. That hooked into some stitches that she also hid in the seams.

I would definitely switch to a french bustle. It'll work beautifully with a simple dress and that way the loops can be hidden inside the dress. I would also go to a different seamstress.