I've never ridden into spikes lol, they're not even that used.
Anyway, stop QQ'ing about cav being easy mode. The only way you're dying to cav is by being unaware of what's happening around yo, or being on terrain that favours cav.
Typical 2h: "OH LOOK A BIG OPEN FIELD WHERE I CAN GO SWING MY SWORD"
*gets couched/bumped/slashed*
"WHAT, CAV IS OP, I WAS IN NO WAY AT RISK THERE AND I STILL DIE!"
And no I don't jusy play cav, I play inf most of the time and I only die to cav in clusterfucks or if there's mutiple and I'm in the open