It's the same as the first, conventional script you posted, but it doesn't verify the signature, which is a bad idea.
That doesn't sound right. Isn't this a P2SH output?
If it is P2SH, then both the locking script AND the unlocking script are provided by the spender at the time that the output is spent. While it is possible that the locking script might not require a signature (it's impossible to know just from the hash, you'd have to see the actual script to know), it's FAR more common that the locking script will be a typical signature-requiring script (most often segWit).