It's been holding the peg pretty well and at current prices we've been lurking around people can still settle bitUSD for $1
The repeated sharp drop in price and, (in my view) some of the experiments we were running which hampered margins being eaten as the price fell, meant that Global Settlement (GS) occurred.
That means all margin positions were closed and no new bitUSD can be created. This will remain the case until the asset is revived (there are a few means of that, either the debt will be bought or the price of BTS will rise enough).
So the answer is the peg is holding well in the market BUT it is not currently being created/guaranteed in the same way that it was before.
It's not dead - GS is frustrating but it's how the asset is designed to work and the lessons we learn from this (the first GS for bitUSD after 4 years) teaches some good lessons about what should / shouldn't be done. If we weren't messing around with BSIP42 I think margins would have been eaten and we wouldnt have found ourselves here.