But that isn't the problem from the article--the ethical issue of how to deal with a ton of people who are being kept alive on a "bridge to nowhere" when the machines might could be used in the interim to save many more people--as if you have an intracranial hemorrhage you are going to start down the road to actually dying. (And the article also talks about attempts to improve the bleeding problem anyway.)
To me it sounded like part of the problem is that people on ECMO cannot leave the ICU because at any moment they might have a complication that requires immediate emergency care.
So it's not enough to make them smaller and cheaper, they also have to be made much less prone to these complications. I am sure that will happen in time, but I am also sure we'll be able to grow people new lungs in time
Critical care paramedic: that's very much the bigger issue. Some life flight helicopters are being fitted for ECMO and there is NOT much space in a helicopter, once you fit in two providers, a patient on a gurney and care equipment (most HEMS units are Bell 429s and EC/H-135s - MSP uses much larger AW-139s).
Still, to be clear, we are not really at the 'portable' stage either. There's about 65lb of equipment needed for an ECMO patient just for the ECMO itself, beyond other things like Lifepaks for monitoring.