I don't think it has the power to do it, yet. I have a small Scolopendra polymorpha(centipede, in case you didn't know) that has been working at a premade hole with it's "fangs" for over 2 months now(off and on of course), and it still hasn't gotten it out.I just caught my g.rosea sling working his fangs in one of the airholes in his deli cup. I've heard of full grown Ts chewing through KKs and stuff, but has any one heard of a sling chewing its way out?
We KNOW they can, but that's adults. Slings don't possess the energy or power to do it.You better believe they can.
I'd keep a sharp eye for signs that your bug is actually making progress, so you can rehouse in something sturdier before any potential escape.