Well it wasn't "the Amiga" crashing but software...so I don't want to blame the h/w for whatever software does...
it's true.
many years back i managed to find an article describing how *a third party* somehow managed to mismanage the amiga OS, and was the cause for all the crashes.. apparently the OS as designed would not crash.
unfortunately it was years ago, i was noob, and i do not remember more nor did i save a link, so i guess you'll have to take the veracity of this post as "something i heard in the hall".
i owned an amiga 500, which came after my C64. awesome games, i loved it. in those days, i thought crashes were inevitable and all computers crashed after a while, so i just learned to deal with it.