Gorilla Arms are getting improved in the next patch, so that the YEETED ores no longer collide with the ore pile above them. Except if the pile is really big, which in your case it is, but that is another issue that happens in the late game lvl 50+, where there is too much production and not enough retrieval. I am working to fix that.
Why can't dynamite destroy dens? You mean because it's unpredictable and often misses? One upside at least is that the dynamite explosions hit both the den and the mountain at once, unlike most other weapons. Regardless, like all weapons, I'll have to test dynamite some more, tune it further and add more upgrades/tiers. And yeah, lasers are great and turrets need some buffing in the late game. But I'll also be adding a couple more ways to protect runners and to collect ore, as those are very needed.
Thanks for your feedback!