It's strange that neither Trek nor Specialized are willing to offer both front and rear suspension on their gravel bikes where it would be more useful, reserving "dual" suspension for their road bikes.
Bikeradar was raving a couple of years ago about the specialized Roubaix being ideal for gravel and off road riding, even with clearance for no more than 32c tires. Then specialized introduced the diverge line with future shock only, no rear suspension and no rear rack mounts. Trek introduces checkpoint but with rear isospeed only and it's non adjustable.
It's almost like trek and specialized don't even want to sell their gravel bike lines? Are they that afraid of cannibalizing sales from their road lines?