This looks like a fairly good mount, albeit a bit pricey, but convenience can be everything. If you only ever have one or two of the same bikes in the trailer then that is one thing, but different models and different brands might add to your set up time a bit.
Does the clamp mar the frame at all when mounted?
As for the suspension -- the bike is doing what it was designed to do when going down the road loaded, but I think if you asked anyone from the MOCO about how they feel about leaving that suspension "loaded" for an extended period of time, they might tell you it was not designed to be "pulled" down and locked for days in a trailer.
Looking at the video I tend to disagree. It is very obvious that the mount, when the bike is latching in, is unloading the suspension somewhat. Doesn't matter if it is 1/8" to 1", the trailer "ride" is being transferred to the frame as well as the suspension.
One thing I can add that doesn't concern what type of chock you have: if you have a transition flap from the trailer to the ramp, you need to be aware of this flap moving.
When we brought LtBawb's SEEG home from Rhode Island several years there was an "issue" in the trailer.
Driving through the crappy roads of NYC on Rt. 95, somewhere along the line we hit a bump hard enough that the bike and the flap moved at just the right time frame that the rear fender came down on the flap, denting the fender and cracking the paint.
I have since added a catch to the flap to prevent this in the future, but it was at the expense of a Screamin Eagle fender.
Although on the plus side, on that same trip, on the same stretch of road, while sitting in traffic, a piece of concrete about 18” long and 6”x6” fell off a bridge and just missed the front fender of my truck!