Yes. I think thats a good thing though, its the same with mines and c4 with the patch.
Disagree. Claymore is a static defensive weapon that you should be able to plant where you wish and leave it, not have to keep redeploying each time you die.
Same with mines, which is why they stay after you die. They shouldn't dissapear unless they are detonated or you decide to redeploy them elsewhere.
C4 I can kind of understand, that's more of an offensive weapon - generally you plant it and detonate it soon after, so making them less persitent after death is sensible.