Litestream author here. The motivation for this docs page was two-fold. First, laying out the different options with their trade-offs helps people understand what Litestream is trying to be so it helps keep my focus narrow. For example, if someone is looking for very high durability guarantees then they can see that rqlite might be a better fit and they don't try to fit Litestream into that mold.
Second, Litestream doesn't interfere with other backup methods so you can run it alongside a cron-based backup. I typically run both because I'm overly paranoid and because it's cheap.