Maybe, but the thing about unsafe is, it isn't like fairy dust so sprinkling it on stuff doesn't help. This is a common misconception from people who haven't worked with unsafe (even if they've written some Rust)

ten_things[11] = blah; // is a buffer overflow so it either won't compile or it panics

However

unsafe { ten_things[11] = blah; } // is still a buffer overflow, same effect but also Rust warns that unsafe is useless here and should be removed

Now of course we can write a potential buffer overflow in unsafe Rust, but now we're not just sprinkling unsafe on stuff and hoping, we've got a plan, perhaps a stupid plan but it's a plan so that's an improvement.