I agree that Goodra has it's place (maybe B-) as it has usable physical defense and an offensive presence to compliment it's bulk, it can also run several different viable sets, giving it an element of surprise. Not sure I agree with Rhyperior being that high though, it only has one usable niche in being a physical defensive check to a few things. It's so slow that after it checks one thing it'll be so low on health that it will be dead weight and have to be sacrificed. It also has horrible special defense meaning that pretty much every thing you listed in the calcs would just switch out and bring in a special attacker and force you out or just flat out kill you. One calc stood out to me..
Just wanted to point out that (while viable) physical Aegislash is no where near as popular as the special set which destroys Rhyperior with Flash Cannon. Physical sets may also have Iron Head which ofc does more damage than Sacred Sword. All that aside, the calc with +0 Aegi hitting Rhyperior with Sacred Sword is (imo) unrealistic as the smart Aegislash player will Swords Dance on the Earthquake which will activate its Weakness Policy giving it +4 attack.
+4 252+ Atk Aegislash-Blade Sacred Sword vs. 252 HP / 252+ Def Rhyperior: 226-266 (101.8 - 119.8%) -- guaranteed OHKO
or...
252+ SpA Aegislash-Blade Flash Cannon vs. 252 HP / 0 SpD Rhyperior: 270-318 (121.6 - 143.2%) -- guaranteed OHKO
edit: whoops! Did these without Solid Rock. Rhyperior can in fact tank a +4 Sacred Sword (not Iron Head though). +0 Flash Cannon does not ohko either, +2 does though
So both Aegi sets walk all over Rhyperior (especially the physical one as you've just given it +4 attack to abuse Shadow Sneak with). Also, all Aegislash run minimum speed (unless you're crazy and run Autotomize). A few other calcs seemed a bit weird.. +0 Char-X using Outrage seems a bit unrealistic as well, they will almost always have a Dragon Dance under their belt first, or in a lead matchup they will probably just switch out. They also run Earthquake as a coverage move. None of Pinsir, TFlame, Staraptor, Arcanine, Bisharp or Mega Blaziken will stay in on Rhyperior either. Cloyster will more often than not already have a Shell Smash boost and usually has Surf or Waterfall which will Destroy you. I've never seen Cobalion on the ladder, and which Kelfki user is going for Play Rough over Reflect / Foul Play in front a Rhyperior? It just seems you've found a bunch of calcs that were favourable to Rhyperior but didn't actually show anything meaningful. I would say C / C- at best
edit: I honestly think Rhyperior is a worse version of Avalugg. They serve basically the same role except Avalugg has access to Recover to troll physical attackers with Rocky Helmet and increase its longevity, and it has Mirror Coat + Sturdy so it can at least make use of it's pathetic special defence