It's a good question. The only thing that makes me really question the idea is that if the pyloric valve is loosened, it might make it easier for bile to travel into the stomach the way a loose LES allows it all into the esophagus. I realize that there's a difference between dilation and loose, but there have been cases when surgeons/GI docs have dilated a wrap and thus created increased reflux.
Here is an article that discusses the issues of bile reflux with a loose pyloric valve:
Good luck in your search for answers!
Nissen Fundoplication 2/09
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”