"With guns, the problem becomes serious." In theory, Director Xu could tolerate the appearance of drugs; a bit more wouldn't be an issue.
Although domestic anti-drug efforts are very serious, there are still 5 million existing addicts in the country, and drugs for them are essential. If supply is scarce, it only increases their purchasing cost, slightly reduces their consumption, but overall, the country consumes about 5 million levels of drugs yearly.
So, for a city bureau chief in a provincial capital, catching drug dealers or seizing drugs is a part of daily work.
As for firearms...ordinary firearms are also part of daily work, but if the big box in the video is filled with firearms and ammunition, Director Xu would be a bit nervous.
These guys are taking the boxes on the highway; in other words, these firearms are essentially in circulation, completely different from those buried in collectors' basements.