Is “Du Hongjian welcomed Emperor Suzong at Pingliang and strongly urged him to station troops at Lingwu” true?

According to the Old Book of Tang, Biography of Du Hongjian, when Emperor Suzong arrived at Pingliang and was undecided about advancing or retreating, Du Hongjian came to greet him and said: 'Shuofang is the strongest army in the empire, and Lingzhou is a place for military use. Now the Uyghurs have sued for peace, and the Tibetans have submitted. All the counties and cities in the empire are holding firm, awaiting your orders. Even those occupied by rebels are expected to be recovered soon. If Your Highness organizes the troops and makes a long drive, then the rebellious Hu will not be difficult to destroy.' Thereupon he welcomed Emperor Suzong to Lingwu. In the Romance of the Sui and Tang Dynasties, Chapter 92, it is written that Hongjian and others went to Pingliang to urge the throne, saying, 'If Your Highness governs troops at Lingwu, sends proclamations to the four directions, gathers loyal and righteous men, and rides slowly but drives forward, the rebels will not be difficult to slaughter.' This is consistent with the official history.