I have been saying this for years.
So it does not solve anything (in terms of transactions per second).
Essentially the moment it is implemented we can start with another SegWit 3x vs. 4 MB debate.
If it is truly so what is the background story behind such a heated debate over cours of scaling?
Right now the blockchain is already fairly large, like 120GB (and rising 1GB per week now). Given that most people won't even have a 1TB SSD (because a decent one is expensive), it means that it is taking up a huge chunk of their hard drive.
If you are happy for people not to run full nodes, and to run lite wallets, then it isn't a problem for you, but if you want to see Bitcoin less centralized, then the size of the blockchain matters.
I think a gradual rise in the blocksize as technology improves is a fair way to go. Segwit helps for the time being, but ultimately we will need larger blocks, meaning a massive blockchain.