I'm gonna disagree with that. The nuts are most likely stuck from age. Trying to torque 'em like that ain't gonna work as it'll take more torque to break 'em loose than's called for. At that point you'll have no idea where you're at.
One nut at a time... break it loose, remove and clean it and the stud, lube with motor oil (or anti-seize) and retorque. Once that nut's done, move on to the next.
As Mr Skull put it there is more than one way to skin a cat.
I have been into Pipelines and Excavators.
Newer was any mention of loosening anything. even if leaking.
OK many times it was pressure on in the system so loosening was dangerous ..
Most cases a tightening of the bolts did the trick . I have no problem with the loosening but I would wait.
It may be wrong and the amassed knowledge here says it is best practice
The check now would give an indication if it is loose at all.
I have had larger leaks than the one seen there. For a couple of years
Loosening has the risk of damaging something which the quick check tightening don't have.
What if it is a sheared nut there and it is taken off .The threads gone .And one has created a problem that can be to large to fix. Causing problems .. On a fine bike with few miles on it.
( Again depending on skills and tools )
Based on my Pipeline and Excavators background unless there is solid facts I would wait I believe i have seen a service bulletin.
If that is applicable .for this year model perhaps another thing.
Lets get this one started first .. And then consider taking down ( Unless better info is here somewhere )
Back in the day I saw that many times. Complicating it and don't run at all.
Having said that I do have respect for the word class knowledge here