Oh I completely agree. And I've adopted all those tricks. I blow everything out really well with shop air, then WD40. Still, we just dropped a tank on a '13 Express AWD, and, again, it was embarrassing how long we fought some of the evap and electrical connectors. And I learned awhile back to press together, then try to release tab, then pull apart. Still, the best laid plans.....We try our best to not break anything, A good tip for Electrical connectors & Quick connects is to blow all the Dirt/Debris out of the interface with shop air.
*For Electrical Connectors, After blowing all the crud out, Push IN while simultaneously depressing the lock, Then pull on it.
*For Quick Connect Fuel & EVAP Connectors, After blowing all the crud out, Spray the connector with a Penetrant, Work the connector to break it free. Push it inward.....
If it has a removable or a pop-up clip/lock attempt to do that.
If it has a push to release tab....Push on it a few times to free it up, Pull lightly on the connector & it should release.
Cold temperatures makes thing brittle, I use a Heat Gun A LOT in the winter months, You just want to heat it up not Cook/Melt things.
Oh, and don't even get me started on filler necks, although this Express wasn't bad.
Might have just been incompetence, I'll take that. But I hate breaking shtuff. Oh well, the Webasto gas heater is in and the van hasn't exploded yet....now heating the interior with petrol....