That's the function of poses for me too, starters usually. However some users have gotten used to not only a perfect fit, but complete reference links to free products used when creating the sets...some won't google or search Rendo or ShareCG themselves, they wait for the info to be supplied.
The types of errors in the poses that I encountered on my laptop were beyond tweaking....the gallop pose caused Harry to almost fold in half, his front legs folded up under him and sticking through parts of the mesh. I can't release stuff like that, that's more than a need for a tweak. Unfortunately that's part of the woes of using morphs. I remember when we had a ERC version of Slon released to make posing his ears, neck and truck easier....and I eagerly used it for the next pose set I created, and I thought to apply the pose as a test to the default Slon before uploading, and the pose went wonky. That was my first experience with modified models. I've stuck to default models ever since. Even after the work I'm doing on this adjusted version of Harry, I'll be uneasy until it's tested on default Harry on a computer other than my main workstation. If it is limited to to HH Mustang, I may just do Mil Horse default equivalents, since I'd be back to dealing with Harry's delicate default legs and build, which doesn't satisfy western users.
I'm developing a theory about this morph pack deal. It goes something like: Release a western, stocky version of Harry, and an elegant, dressage build Harry. Same with Dawn, grasshopper Dawn for folks who want to do fashion art and whatever else people do with unclothed, pumped, everything jiggles, wiggles, and hits you in the face....haha....and then release normal Dawn, with average proportions for folks who do non-arousal art. It's no different than one model with a ga-zillion morph packs, but at least they would work with poses and content created for the specific model types. Same for the male models....if you announce you're creating a new male model, folks come out of the wood work, wanting yet another androgenous, gender neutral model with huge privates...then the body builders come stampeding in, wanting muscles in everything but his nose....when the average male is neither. Ever wonder why the DAZ males are so successful....because they are neither of those things, making them more useful, easier to create clothing for, and frankly more attractive. We need to learn from what works, instead of listening to a noisy minority on that one....but even so, a super-dooper, biggest privates you ever saw, with muscles that bulge everywhere version could be released for that crowd, and then a normal male model version, with detachable privates, for folks who like clothes on their models. This is basically what Poser does...they just don't spend the extra time to get the rigging and bends just right, nor focus on the facial features as much as folks have become accustomed to. They release raw materials type models with the expectation that the user will create their own character....but they're playing to a crowd who has become DAZ-zled in their expectations. So now we approach model creation like shanty shack building....add this, reduce that, and tack on something here and there with morph packs....and after we finally get it near right, a new model is released and we start the process all over again. Just some thoughts.