Nope, that was no evidence. You did not give evidence of miners actually operating masternodes. Therefore your assumption remains an unproven assumption.
Find the missing link and we will have something to talk about.
That is a slightly silly comment if I may say so.
That the protocol supports and favours hybrid mining at scale is academic. It doesn't require empirical observations as "evidence".
I would say that too, if i was trying to present an assumption that i could not proof.
Find the missing link.