"No shortage of targets, soft and hard in the whole area if you are a suicide bomber. "
That may not even be needed
The pipeline was physically built by the China National Petroleum Corporation
https://en.wikipedia.org/wiki/China_...on_Corporation
Currently Iran's best pals in the oil industry as no-one else will invest or work there.
I may have my paranoid hat on again, but I'd be worried about the Chinese ability to disable the pipeline through back doors in the control gear
ABB provided the electricals, but I'll bet the Chinese had plenty of opportunity to hijack the system
PS - don't forget the Chinese have made threats to come to Iran's aid in the event of an attack