Yes, because it didn't met it's prime goal, to be useful to power LCA MK1!
I have some doubts on your initially estimated weight specs of K9, because it was meant to be a light engine, with 81kN thrust, which was developed even according to western standards, so the weight aim must had been around 1000Kg or lower, but it turned out to be 1100Kg or even heavier.
Several other specs are wrong as well, GE 404 IN 20 offers 55kN and 85kN for the version we use in LCA MK1, RD 33-3 series offers 83kN and the MK version of the 29Ks even 90kN thrust, while beeing lighter as well. So currently, Kaveri is not able to replace a single foreign fighter engine and some reports says it fell way shorter in terms of thrust than you think. That's why the plan now seems to be to co-develop the Kaveri K 10 and replace the GE 404 IN20 during future upgrades of LCA MK1, because there is simply no hope for the K9 to reach that level.
So the engine itself is a major failure of DRDO, while it was a major planning failure in the LCA project, to be dependent on K9 and not using a proven stopgap engine first!