Mike, blank SD cards of 8Gb size are just a few dollars. There are instructions in several places about how to use your desktop/laptop to write the images yourself to the new, blank SD cards. It is pretty simple.
It takes more time to read the shutdown instructions that it does to actually do it.
It is NOT a "maybe," "it could happen," "probably won't happen" and so on. It WILL happen to you without graceful shutdowns. There is no magic or hopeful expectation to it.
An alternative is to make the entire partition read-only, but if you ever wanted stratux logs (and most never need it) you'd have to do the two partition setup.