The plot between Vegapunk, Kuma and the revos are starting to make sense.
Guess Vegapunk and Dragon actually knew each other, with Kuma being used as an extra mean to infiltrate the world government to get crucial info
It also explains why Kuma trusted Vegapunk so much he willingly accepted being a test subject for his experiments and I'm assuming that due to his knowledge, the government tried to force him to develop weapons for them, SSG included, but due to threat lvl of his intelligence, they are now trying to get rid of anything related him, his Punks in particular, with Vegapunk himself being close to death due to old age