My understanding, and I'm neither a chemistry major nor say, a legal expert (but I did stay at a hotel in the recent past) is that oil and water do not in fact mix.
These quality oil filters on the Tartan might be of such HIGH quality they might be useful in keeping the boat drier if a emergency such as immersion (in part, or in whole, in operation or not) might be survivable with proper insurance and legal assistance. I do not know as I haven't tried it; there being no need on my boat; they (oil filters of high quality) may be useful in preventing blistering, being proof against water intrusion and all.
Properly shaped oil filters are also strong and flex resistant, that could come in handy as a general trait, preventing flex and other bendy toy like problems.
That's not a recommendation, just a thought..
Lessons learned are opportunities earned.