Unfortunately, I think most consumers of these beers don't really have the same standards that most of us here do, and the powerful driver for sales is the branding, not the taste. So if Heinekin, Stella, Carlsberg etc are to look at the majority of their target market, then the small percentage of people who will stop drinking their product as a BUL is insignificant when compared to their increased profit margin.
But that's getting away from the point. As far as restaurants calling these beers 'imported' - well it's simply disgusting, and quite frankly it's an outright deception. It's like calling a pizza 'imported' because of it's historical origins.
Incidentally, up until about 6 months ago, my local bottlo were selling true imported Stella, that came via Turkey or some other country. So someones still bringing in the stuff (if anyones interested I'll pop up and see of I can find the independant importer's name). Mind you, I don't really think any of the aformentioned beers are great, even imported..... .... better than swill, but I'd rather my homebrew wheatbeer or an Amber Squire.