Bman's tried to, it's hard though as only crew could fix it. Plus there's some other things involving beacons such as duping so it's a bit of a hesitation to fix it.
They aren't working on this. All they have to do is go into the configs and change it from "TRUE" to "FALSE"... I don't think people on here really know how easy it is to "fix" things like this.
It's only beacons that are "broken". Minecarts are intentionally added to clear lag. It's been like this for years, it's mainly to reduce the risk of duping via minecarts and people in minecarts triggerbotting for mcmmo.
@MidNightGaming, would you like me to close this seeing as minecarts no longer get cleared? Or do you still want beacons not to be cleared?