As a matter of verisimilitude, halflings exist in real life (the term is over 200 years old and has been used to describe dwarfism), and they do not run either as fast as your dog, or a normal height-unchallenged person, even most children can outrun them.
Talking about your dog running faster than you is about as pertinent to to this topic, whether 3-foot tall halflings and gnomes in D&D should have the same base movement rate as an adult human, as the price of gas is to a bird.
And no, D&D Next should not be a meaningless sludgy soup of nonsensical, absurd and contradictory rules that make no sense and cause reasonable people to go, Hmmmmm, why did they make this change? Speeds were not broken before, and now they will be. They're adding bugs (to many people) to the game, while claiming to want a 2014 summer ship date. That's not how you ship a game that you want to sell.
Cheers!
You are just... plain... wrong on this one.
Halflings are not humans with real-world human Dwarfism.
Halflings, gnomes, and dwarves are fantasy races that are *not* human in any way, and should not be treated as such.
Screw the idea that stride is the only thing that matters.
There is nothing wrong with assuming that halflings and gnomes are spry races that take more steps with less effort and are able keep up the same pace as humans. (Other species smaller than humans can do that as well. Dogs, for instance.) They have humanoid predators that have had to be able to run from, and it can be easily explained that they were created with such boundless energy, or they evolved to suit their needs in a world populated by human-sized predators. And their same-sized foes, Goblins and Kobolds have had speed 30 feet for a while now too. It could be said that Dwarves have such robust stamina that they take more steps than a human, and don't get tired as easy as a human.
Maybe wood elves have a speed of 35 because they have stride in additon to the boundless, spry energy that halflings and gnomes have.
Older rulesets that give short PC races lower movement speeds were written by designers who thought like you do, that these races are slow because they are essentially tiny humans. And I believe that is a poor, misguided reason for them to have been given those slower movement speeds.
And you keep on saying that the designers are considering this rule change for no reason. They gave reasons. "The speed penalty for smaller characters and dwarves doesn't differentiate them from the other races in any interesting way. Moreover, goblins and kobolds have had a speed of 30 feet since the days of 3rd Edition, so in some ways, we're simply adjusting gnomes, halflings, and dwarves to an existing standard."
Other posters have been giving reasons. You just disagree with them. Heck, someone else made a point that the Exploration Rules they are writing may be showing bugs that we haven't been seeing yet. If one character has a speed of 25 or 20, that means that the entire group moves much slower during exploration at all times? Guess how many groups would handwave it? I believe it would be many.
How many penalties do you demand that small PC races have? I'm ok with a limitation on heavy weapons and versatile weapons, but overall speed penalties, strength penalties, weapon penalties, and whatever else people dream up... give it a rest. They are fantasy species. Stop looking at them like toddlers or human little people and giving them limitations that you think those people should have.
... in my opinion.