I couldn't argue on that summary . While the rest is up to a different interpretation and and opinions . And i don't even want to bother on digging that rabbit hole anymore than allready is .IIRC there wasn't any malicious wrong doing on PT PAL's or DSME's part, rather the Indonesian Navy wanted them to cut costs and corners and they got what they asked for in the end; A sub that had problems BECAUSE they asked the shipbuilders to cut costs and corners.
What's happening right now is just political face saving. The South Koreans knows how to build submarines, we just weren't ready to bear the capital investment for actual credible defense deterrence.
It's all about mentality .... We are simply aren't there yet .