Obviously every technological invention has an end when a better technological invention arrives. Same would happen with Bitcoin too. There will be a phase for Bitcoin and Quantum Computing could be real threat to vulnerability of bitcoin as it would make it sort of useless but. I think rest of the points were added just to make article look bigger. Software bug can be in any application doesn't mean end of bitcoin or something. But Quantum computing would make all sorts of passwords useless so there definitely would be some solution to that also. Maybe we could shift to another cryptocurrency which could solve these issues by creating a private key using our finger prints.
I doubt that another new tech that would be better than bitcoin could come along anytime soon. Right now blockchain is the biggest tech in this sector and we are surely getting better and better blockchain and we can safely say that best blockchain is definitely not bitcoins by a big margin yet bitcoin is still the biggest one.
This shows that people do not care about the best blockchain or best technology, people just care about marketing a bit and what the community things, and community loves bitcoin as it is, so it is not about anything better coming along or not. So my idea is that nothing better than blockchain will come anytime soon, blockchain will stay as the best tech for at least another decade probably longer, but better blockchain than bitcoins already came and changed nothing.