I'm glad we received a general chronology of Roger's exploits on top of having some long-standing plot holes filled. I mean it has always been weird that Raftel went undiscovered for so long, but apparently no one even know it existed till 20 years ago and the last stretch seems to be completely un-sailable.
The information that I find the most interesting though, is what Buggy said about Teach. When Blackbeard took Whitebeard's quake powers, Marco mentioned that his body was atypical. A rather ambiguous comment, which generally has been explained as being a reference to the effects the Yami Yami no Mi had on his body. However, this chapter clarifies there has always been something inherently different in Teach's physicality as a normal person should be able to sleep/needs to sleep. If BB has never slept in several decades (or never at all), he's definitely diverting from the norm.