I would have expected the cones to be destroyed like a fence or something, but with a pickaxe. Instead it seems like they are just destroyed with a single tap?

additional context: survival mode

Was able to work around it with crafttweaker....

import crafttweaker.item.IItemStack;

val trafficWidgets = [
    <trafficcontrol:cone>,
    <trafficcontrol:channelizer>
] as IItemStack[];
for widget in trafficWidgets {
   val a_widget as IItemStack = widget;
   a_widget.hardness = 1;
}

I've updated the title to reflect the fact it seems like most objects are destroyed too easily?