I believe the article explained that pretty well. Chandrayaan 2 had multiple objectives, there was no "end goal." Obviously, setbacks and disappointments occur in scientific missions, that is just part of the process. And in numeric terms, 8 of the 14 payloads were delivered on the orbiter. So there is a reason to celebrate, despite the dissapointment of the soft landing not succeeding. And the Government doesn't need to face save, since organizations such as NASA and the ESA have all praised ISRO for the successes of Chandrayaan.Promotion and Pakistan bashing are two different things by the way. And in my view indian government is face saving by calling it a 90% success. If the end goal hasn't been achieved then what is there to celebrate? I don't know why indians fall for this government's lies, but its of concern for us in Pakistan.
Also, I highly doubt India would have used space as a way to bash Pakistan. India became the first country in Asia to send a satellite to Mars, did it use that as a way to bash Pakistan? If anything, it is Pakistan who is out of line in this case. Indians and Pakistanis trolling each other is one thing, but unprofessional behavior by Cabinet Ministers and high ranking military officers is another. Why does the director of Pakistan's military PR wing need to comment about a civilian space mission?
So while I understand your concerns, it actually seems like they are applying more to Pakistan in this case.
Personally, I think it is unfortunate that the current situation between India and Pakistan has gotten so bad that civilian space mission have been politicized. I think it would be great if someday, India and Pakistan could jointly launch such missions.