> Support for some features of the current SQLite format might deprecated, then removed, over the next many versions. Or perhaps a subtle bug is introduced that renders certain ancient versions unreadable (https://news.ycombinator.com/item?id=15531489) and sticks around for long enough that you end up in a situation where you need to invest very significantly in software archaeology.

At this point, you've side-tracked into an argument that anyone could make against any software.