Reliability is key.
But is the quality of the Arduino software/libraries good enough ?
this board runs MbedOs from arm which is a very robust Rtos with very advanced features. The the individual quality of libraries depends on the author like in any open source project.
Downtime of a machine can quickly rack up huge costs, so you want to spend extra on hardware that can resist greater temperature ranges, vibration, radiation, magnetism, moisture, etc.