Are you honestly trying to equate the two? Something random to something that can be of practical use, make moving less clunky, and is actually pretty logical?
Sure it would be practical but they didn't add it in, I don't really feel that it's something that's needed. I only use sprint when I'm on a flat surface or trying to get somewhere fast. I don't try to use it to clear large gaps or anything like that and if I do have to stop and jump over an obstacle it doesn't really bug me to have to tap the button for a split second to jump.
A running jump doesn't seem like an unreasonable request. Especially considering past TES games, where if your skills were high enough you could jump and attack simultaneously. Seems as though they could have made a perk for it to compensate for the lack of skills in game. Mayhaps they will.
It's totally not unreasonable at all, I truly do miss acrobatics and athletics though. On my PC character I jacked my movement speed up 30% so my Khajiit actually feels like one again.