Yes & Yes , soft racks are not good for Sups.

Hard racks with a raised D shaped rubber like the Rola rack will put a depression across your board if you over tighten your straps , so it's a good to put it in a board bag before you strap the board down , however it is OK for the rack to have direct contact with the board if your deck grip is resting on it.

I use the the Rhino racks big tough and ugly with a padded flat top. Make sure you always use straps to tie your board down , rope and Occy straps can also damage your board , plus the Occy's often snap under load.

I use softracks to hold a 12'6 raceboard onto a flat roofed van. No probs so far, way less pressure on the board too

Mine are 1&1/2" aluminium bars, a visit to 'clark rubber' and bought a pair of foam tubing, sold for the above-mentioned purpose - to protect items from damage when on roof-racks. I used to use insulation foam tubing, but it's too soft & had to cable-tie it down. the tubing I got this time has a small slit in it & self-clamps onto the rail, not needing anything to hold it there & easily peels off when not wanted. I leave it on most days, and take it off for long trips when I'm not using the racks.

The following pic isn't what I got, but gives the idea...

My mate has 2 neat creases in his carbon 12'6 as a result of 1) loading the board bottom side down on Rola racks and 2) cranking down too hard on his straps

Might be worth gently heating along the crease with a hair dryer or heat gun at a low temp, with luck the creases may pop out! Be gentle!