Gentarium is not aimed to fix the zerocoin protocol or to bring any disrupting code in the space, it is primarily focused on a service on their platform which it has been providing with success so far. I am pretty confident that they can take necessary steps to keep their blockchain healthy whenever its necessary and can follow suits accordingly.
Apart from security issues, I am a big fan of PoW because I believe that it gives an intrinsic value to the coin but apparently most PoW chains will switch to PoS over time anyway. Speaking about PoW, there are many other projects which primarily focus on PoW and technical advancement of blockchain, if you are a PoW enthusiast perhaps you can check out those. But if you were aware about what Genterium focuses on, you would know that GTM is pretty successful implementing that.
To me it is very nice to see the GTM started with a PoW and continued it for a while before switching to PoS now.
ahahah keep going)))) show me their previous work. what i saw so far - empty repos