2x18650 with high CRI?

So this is my n00bness talking, but looking at this graph, does this mean the SST-20 can only do 720 lumens? Or how does luminous flux compare?

https://budgetlightforum.com/t/-/52809

The 3000K graph shows lumens and it's not much better.

https://budgetlightforum.com/t/-/52428