This is apples to oranges again. BECCS is not in fcels wheelhouse. Different intakes and different applications all together. The biomass part has quite a few disadvantages and it is not a main stream technology. Not sure why you’re comparing fcel and BECCS at all …
It’s also not a mature and ‘proven’ technology. And if you say it is, then I (and probably others) can say fcel is a proven technology. Biomass and carbon sequestration together is not a competitor to FCel and it’s target market applications.