Horses may not LIKE being poked, but you know, if I need to poke them to get some respect, I am going to do it! I'm rather give a quick poke with the spur with a lot less pressure than kick harder without. (I own short spurs with a nub at the end, btw.)
Also, think about this. If someone poked you decently hard(ish), you would probably move over quick, (then retaliate, lol). If someone just pushed on you it would be easier to resist. Same with horses.
So really, spurs are perfectly fine if you USE THEM CORRECTLY. Spurs are for both refinement and reinforcement.
On a completely different note, I have passed Driver's ED! I got 100% on the written test and have my Driver's ED driving hours in. YAY.