Actually the track layout was seen as quite good in Dallas, and a notch above most US street circuits. The drivers liked it and found it quite challenging.
It wasn't the track layout itself that caused it to be remembered as a disaster but rather the fact that the tarmac began to literally fall apart on race day. There were parts of it that began literally melt under the extreme heat. There'd been a Can Am race immediately before the main event and these powerfull and heavy cars finished off the tarmac for good. To the point that some of walls became loose on their foundations. The drivers became increasingly concerned and there was some talk of a boycott for a while. I think during the race the retirements of Lauda, Alboreto and Prost were caused by a piece of metal that stuck out between two rows of walls in one corner slicing through the outter wheel rim...