A planned upgrade of 6 years? How would that be in the future? How long does it take to fix a minor issue? Tezos for example is able to evolve every 3-4 months without forking and is PoS since 2017. Also they're doing a better job on security. https://tezos.com/
Not doubting any of your statements, but why have I never heard of it before? If it is good why hasn't it displaced ethereum and become more mainstream? Are there any cons that prevent it to become more prominent? (sincere question from me, I am curious to know more)
Last week a marketing campaign started, maybe you will see an add somewhere in the near future. A lot is going on in adoption atm, here a few recent news:
banking https://xtz.news/adoption/french-banking-giant-societe-gener...
gaming https://xtz.news/adoption/ubisoft-become-a-tezos-corporate-b...
stablecoin https://xtz.news/adoption/groupe-casino-with-11000-stores-to...
digital identity https://xtz.news/adoption/spruce-systems-makes-it-into-y-com...