No, Rep. Rob Bishop, Sen. Orrin Hatch, the rest of the Utah delegation and President Trump, the Antiquities Act does not need revising. It works just as it was designed to.
On matters of public land owned by all Americans, “local voices” put short term profits and local greed above the protection of assets that may be ruined by local interests. That is why a single voice elsewhere, in this case the U.S. president, who listens to many sides of a truly national issue (for all Americans), was wisely empowered to make a considered designation. Waiting for slow congressional action may be too late and things that need protection may already be stolen, trodden under ATVs, or defaced by local voices.