but when they try their hands on homegrown KCR-60. The first batch are seen as defective.
This is a very important lesson that must be taken since there's no instant success. It would be unnatural if every first attempt to create something on your own always resulted in a perfect product.
On the other hand, many if not most of the problems in the first batch of products - in this case, the KCR-60 - can be avoided if PT PAL has developed its own truly comprehensive testing methods and equipment, or at least acquired these two from more established shipyards.
LHD are miles ahead when it comes to complexity and a lot of learning curves to be learned by PAL
True that. But there will be no progress whatsoever if no first step is going to be taken. Since they seem to have gathered enough confidence after developing and building LPDs, it's natural if they want to get their hands on something bigger.
Of course, they should never take anything for granted since the LHD is still something new for them.