The temperature-pressure relief valve is the tank's last safety device; without a discharge pipe, a release scalds whoever is standing there.
Evidence
Reference
Educational illustrations, not photos of this property — each is labeled below.
Give relief water a safe route. Example of an unobstructed discharge pipe from a temperature-and-pressure relief valve. The illustrated endpoint is conceptual; approved routing, material and termination depend on the installation.
Reference illustration — not this property.
A missing pipe leaves the release unrouted. The relief valve is present but its discharge outlet has no pipe. An uncapped outlet can still release hot water; the missing pipe leaves that release uncontrolled. A capped or blocked outlet is a different condition.