That wasn't about the looks of the mount, it was about the speed/scaling with riding they said NOTHING about the appearance. Why are you bossing everyone around in a thread about "<3 Hearthsteed <3"??
Also, the mount was posted months ago as a Hearthstone mount, and the fact it's called Hearthsteed I don't know why you would assume it was a store mount xD
Regardless, it's a great idea for a mount, and not that hard to get even for beginners or people who don't enjoy the game much. I don't think it was a bad idea for Blizzard to release a mount obtainable in a free-to-play game outside of WoW based on Warcraft characters.