Peculiar thing that an JH7 of all planes would be testing it. JH7's radar has possibly shorter range against air target than the useful reach of this missile.
That being said, the size and configuration of the missile might actually make it very good for other roles as well, if other variants exist or are in development. Anti-radar mission would likely be served very well. And due to its compactness, the missile might be easier to carry and more of those missiles could be carried, compared to a plane laden with YJ91 missiles.
With satnav guidance, it basically becomes a VERY long range guided multiple rocket launcher-like round. Possibly effective against all sort of non-moving time critical targets, before they relocate. GMLRS rounds are said to enjoy <5 m errors in precision. That seems adequate precision for most targets, save for bunkers, given the probable size of the warhead on that thing. (probably between 50 and 100 kg) And due to the likely profile - swooping down on defenses at mach 3 or above at steep angles - even various close in defense systems and AA artillery are not likely to do well against multiple such missiles.