Based on strength, Long Jiu cannot be compared to Qin Song. In terms of intelligence, he had an inflexible, one-track mind, he only acted rashly and didn't know how to adapt to circumstances. So upon knowing that Long Jiu was back, Meng Qiu didn't spend much effort as he thought that he would be able to capture Long Jiu in a couple of days. Who knew…
As he looked at the bunch of snivelling black armoured Spirit Envoys, Meng Qiu could not help but wonder if Long Jiu had been "bought" by someone.
With Long Jiu's character, if he knew the current situation of Soul World, they wouldn't have to find him, he would have angrily barged up to them. Even though he knew he could not win, he would have just acted recklessly rather than employing such circuitous tactics.