Can I trust my pressuretrol?
If your pressuretrol is truly acting up, I would replace it.  I'm sure you've already ensured the pigtail is free of sediment, etc.  In my experience as an HVAC controls tech, once mechanical controls start to act up, it's usually more cost effective to replace the item in question than continuing to rely on a compromised pressuretrol.  (Murphy's Law is in full effect here).

Nothing like waking up mid-winter for work with zero hot water and a replacement pressuretrol is backordered (no, this has never happened to me before...)

You have a high pressure safety relief for the boiler if in fact the pressuretrol did stick on, so you're covered from catastrophic events - however ensuring your BMS is working properly is more important.  Plus if that safety lifts, if the overpressure in the system hasn't damaged any control valve(s) - you're still gonna have a huge mess on your hands.

Basically - don't rely on built in safeties to protect you from out of bounds conditions you can control :)