Good you are getting practice at it as this will be the future for most modern Ducati's. I see bikes that are 5 years old and older at my shop mostly and you can see the generation where Ducati started using captured nuts in plastic as the beginning of this. It may be the plastic is the thing that changed as old airbox's from the 90's and older do not suffer from this but starting early 2000's seized bolts and spinning nuts in plastic became common.
It is worst when it is the fuel tank where it happens and often it is found at the first fuel filter change, often well out of warranty. I do think they may have improved it on the newer bikes as I think Ducati finally may have moved the fuel pump flange to the top of the tank like BMW did years ago. A battery strap is a pain but I am sure you can come up with a solution that will be acceptable.
Just a bit of advice based on what I see. With age the plastic will lose its hold on the insert this is just normal for the plastic as it changes shape and durability(rigidity) with age, just a fact of life for these bikes. Knowing that help yourself by NOT over tightening fasteners, if it is a body panel or something like a battery strap maybe some very low strength loctite (purple). If it is a non-critical fastener I would rather replace a single missing screw than ruin a panel or fuel tank. Obviously you need to use common sense as to which ones are critical and if you are not sure ask someone who knows.
If you do not work on the bike yourself request this be done and consider the cost savings of not paying a shop a ton of time removing stuck fasteners. They may not want to go too low and I fully respect that but you are just looking for that mix of anti corrosion (loctite helps with this) as well as tight enough to do the job and no more.
