With the current C2 design using a fan and damper, I agree.
10 years from now, I’d wager C2 will have adopted the same tech as bike trainers: massive flywheel + electromagnets + power meter.
Dead silent, accurate power measurement, remote control of the resistance possible for programmed interval training. It might be less relevant on a rower but on the BikeErg and SkiErg it makes a lot of sense to simulate different inclines and I suspect they’d just port the new “power section” over to all machines.
Until then, the PM5 will do.