I did a bit of reading up on Stella and it turns out it's 'premier lager' rep comes from long ago when in the UK most beers were brewed to 3%. Stella was brewed to something like 5.5% and considered a 'premier' beer. It cost enough anyway! So it was considered a 'premier' European lager, like Hieniken, in the UK market.
However, in the late 90s, and early 00s, most beers including so-called imported America lagers like Bud where starting to move up to and above 5%. Stella cut costs and started using a large portion of Maize sugars instead of malt, started using less hops and started chemically processing for a under 1 week lagering.
It is mass brewed in Belgium and in the UK and somewhere else I can't remember. Not only is it brewed in several different places, it is brewed in different strengths and other modifications for different markets. So there isn't really any "one" beer called Stella, rather it's a product range, manipulated for it's market. Maybe they thought the America market liked skunked European lager, so they brewed it specially for you
Lately, like in the late 00s they jumped on the inititive with a lot of other brewers to lower their ABV, but rather than spoil their fan base, they released Stella 4%. It's slightly sweeter, has a nice hop flavour and smell and generally isn't a bad session beer.
I get mine (stella 4) in cans, in 12s for about $16. All in I like it, but I wouldn't call it anything special.
Oh and they sell the 5% version in green bottles over here too. Usually, though not always in the fridge under florescents. Although I doubt it will sit as long on the shelf as it would going to the states.
Are you guys sure they don't also brew it over there for the US market?