Yea it’s such a weird direction to go right night. Manufacturing and delivery of hydrogen for fuel cells is complex, expensive, and poses some unique dangers with the temps and pressure of the hydrogen. It’s cleaner, assuming manufacturing of the hydrogen uses green energy, but right now most energy production isn’t green.
It has its advantages but some pretty big disadvantages too. I don’t think it’s the way to go just yet. Maybe eventually but not today I don’t think.