Poftak would not provide a date for when the work would be completed on the Orange Line. "If I put a date in place, it doesn't prioritize safety it puts pressure on field staff to make a decision that is not based on what is the safest condition in the field, it forces them to make a different decision. I regret that I can't give you a date."
This really sounds like using "safety" as an excuse to hide behind while they slowly let out details of how long the project will actually be. They published a fairly detailed list of tasks and a schedule for the original shutdown and many other projects and didn't hide behind "safety" as an excuse. Now they can't say how long it will take them to do, or even really describe what exactly they're doing.
Not being able to estimate how long something will take sounds more like catastrophic/unexpected failure than relatively routine maintenance work, unless of course the actual estimate is so bad they're reluctant to say it.
As I once heard someone say, "It's Boston, you can't treat people like they're stupid"