From everything I've read it looks like the fumes, droplets and EPA shutdown were just the heavy last straws on the camel's back. They were supposed to begin refining in early 2020. They missed that by a year. The biggest investor, Arclight, finished pulling out in April 2021, before the toxic troubles even really got going.
I would love to see them operate safely (for our economy) but it doesn't look like they have the capital or experience to do that.