Yeah to be clear, the amount of people in the US who practice this as described in the article probably numbers in the thousands or fewer. The real story here is will moderate Jews do anything? Well I'm a moderate Jew...at least I posted about this here.
Two answer another question about the difference between liberal and orthodox Jews..it's complicated. Conservative and Orthodox both hold that traditional Jewish law defines Judaism, but Conservative Jews allow for more creative interpretation, while Orthodox Jews allows less wiggle room.
The Reform movement basically doesn't hold any part of Jewish law as mandatory at all.