I hate the mould too much to want to transform it...

I just wanted it to complete the set of Gen1 coloured Dinobots, and since it is packaged in robot mode, it probably won't be transformed unless someone comes over to see what it looks like.

So unfortunately I can only comment on what I see from the Robot mode.
And that is, the silver parts look to be separated so that none come in contact with other silver parts (from what I can tell)... except the dino tail, which becomes two halves for the "belt" of the robot mode. The plug-n-post inside the tail might see some wear, as the tail is a frustrating part of the transformation, but if it does wear off some of the silver, it will remain hidden in both modes.

The red kneecaps look to be the only non-rubbery part that locks/links with a silver panel... and since it can be a tight fit with a knee joint working against it, that's probably the only silver spot that will show any wear (if wear occurs).
The shoulder holes don't seem to have any silver inside the hole itself, so attaching the red spiky things won't do any obvious damage. BUT, if you wanted to avoid any scratching of the surface from roughly plugging in the red spiky things, just don't stick them there. Keep them attached to the two lances instead, or stick them in the two black holes on his back that would hold the lances in Dino mode.
If you plan to keep it in robot mode, and maybe transform it once to see what it is like, that should be okay... but if you are deciding which of the two to open, it will come down to if you have the SDCC Dinobots.
If you do, and they are on display, then this one is kinda needed for the group display.
But if you don't have that situation or you need a Slog to have for casual transforming, or to figure out how it transforms without instructions, it might be best to keep the Amazon one sealed for display, and wear out the regular version, as it might be easier and cheaper to replace if you break it or scuff it later.