I would not fly unless the oil filter was safetied, I would even want to know that it was a good job of it too!
I don't safety it on my car or truck, but there I can stop in less than 1/2 a minute get out stretch may legs, maybe water a few native shrubs and get back in. Compare that to an emergence landing.
If the oil filter loosened up and I lost too much oil, I would just start walking or tighten it up and check my tool box for a few quarts.
The measures of safety taken should be equal or greater than the consequences of not taking them.
Some people even use .040 wire, I am ok with a nice application of .032
