Check the content / location of the MTB clinic. I wouldn’t want to do any jumps or drops on a rigid bike, or ride much gnarly rocky, rooty trails.
As long as the focus of the course has the wheels stay planted on the ground, and the terrain is reasonably tame, a MTB clinic is likely suitable and will help.
FWIW - I took my Diverge with 45mm tires on one of our local green downhill trails - a trail I’ve ridden with my kids on their MTBs - so quite tame. The Diverge was completely out of place on that trail. The cutthroat with contis is closer than the Diverge to a MTB, but it’s still a rigid bike. So something to keep in mind.