Meh, the devil's in the details with a lot of those announcements. A surprising number of them are things like... it will be 50% better 5-10 years from now!
That's actually incremental improvement if you think about it in annual improvement terms.
It is, except for the fact that the future isn't guaranteed, so there could be unforeseen problems with scaling up, and that 50% improvement never gets delivered. As mentioned upthread though, CATL has expertise in that area, and "end of this year" is so a trackable claim, unlike the claims about gallium-based batteries.
That's actually incremental improvement if you think about it in annual improvement terms.