Definitely not the lightest solution for coffee, but other than Cowboy coffee and Via packets, most backcountry coffee solutions that yield more than a decent cup or two aren't light by BPL standards.
I'd pack a Press Bot in on a winter hike or fat laden weekend trip, especially if I was sharing miles and smiles with a few others. I think its a slick product that clearly works and doesn't take up any room, assuming you already have a Nalgene with you.
What is the target audience for this press?
I'm not familiar with raft guiding gear and packing styles, but I get the impression weight matters very little in that camp and slipping in a real deal Bialetti or traditional group sized press system isn't a big deal. Would they use something like this? Traditional weight backpackers seem to pack separate items for specific purposes, shying away from niche multi-use items like the Press Bot. Is this sorta lost on them?
Generally, lightweight hikers of the BPL variety, IME, forgo coffee altogether, or settle for instant solutions that 'get the job done', sacrificing some quality for efficiency (*weight). Of course coffee tastes run the gamut and what defines a "quality" cup of brew is up for debate.