Grimstone Should be Slightly More Blast Resistant

I love the beginning of the deep dark so far, especially all the types of grimstone.Though I noticed the grimstone's blast resistance is the same as stone. It would be very helpful if grimstone received a higher blast resistance, kind of like endstone, so it can be a more protective building block. I know it might get annoying for some who want to use TNT machines, but it would be nice to be more protective. It needs to be harder to get through anyways.