One of my favorite comics from this fandom. Such a nice message, delivered in a great way. This feels like something that could happen in the show. The subtlety of having Applejack demonstrating her wide variety talents all while Twilight is asking her questions drives the moral home without the viewer even realizing it until the very end. The slight gag of having Applebloom in their is excellent, as is the listing of all of Pinkie Pie's talents at the end. The art style is similar the show, but with your own more angular style and with the addition of some shading. The style works well with the comic layout, and the ponies still look excellent.
This is an awesome comic, I smile every time I see it!
The lack of popularity of earth ponies is fairly simple to explain. It's that unicorns have pretty much a wildcard in magic that can be used for anything and pegasi can fly. A lack of visual distinction is therefor enough to explain a statistical lack of popularity.
To be perfectly fair though, I don't think the pony distinctions were designed with high-level geeks in mind. It was designed for a cartoon for little girls. I know for strong MLP fans this "explanation" is unacceptable and a bit of a thought-terminating cliche, but it is still ultimately true that a setting intended for children doesn't need to be as intricate or well-explained. This sort of streamlining allows more narrative freedom, too, since an episode premise is allowed to boil down to "a unicorn did it".
And yeah, as this comic shows, they actually did put some decent thought into the characters when matching them to ponies, even if the pony distinctions were simple. Twilight is a typical unicorn, Rarity is somewhat atypical. Rainbow Dash is a typical pegasus (don't tell her I said so!) while Fluttershy is very atypical. Applejack is a typical earth pony, Pinkie Pie is extremely atypical. In general the issue just comes down to "magic" being just too attractive a concept to ignore on a level deeper than a cartoon, certainly not on the level the pony fandom devotes itself. It's a shame because I really like earth ponies myself and feel if the fandom ignores them too much, then we begin to lose the properly "equine" feeling of the setting. They become a lot cooler if you think of them in terms of high fantasy druids.
I also think the pony types could do with a bit more blurring. I like to think of Fluttershy as possessing a bit of earth pony power, Rainbow Dash's signature ability being technically magic, and all we need is Twilight or Rarity to learn how to fl-- oooooooh, that's right.
In any case, it'd still be nice if the setting didn't have so much "decided" for you by birth or by your cutie mark. But no fantasy setting is perfect and this one is damn good just because it emphasizes love instead of killing orcs and dragons.
Well is fun to overanalyze stuff. Is our job as fans to fill all the whole with our crazy theories.
For example: How can ponies grab stuff with hooves? The average person would say "Is a cartoon it doesn't need to make sense." or "To make them more human" I say "Screw you! All ponies have tactile telekinesis!"
Or the area under the hoof is made of a sort of spongelike flesh capable of gripping objects. We already know they don't have typical equine anatomy since Pinkie almost vomited in season 1. It's not so much their picking up stuff without hands that confuses me nearly as much as why everything in their society still seems ergonomically designed with humans in mind rather than intelligent quadrupeds.