Yes, the most striking thing about the graph for me was the wide variance in poll results before the referendum (I think 95% confidence intervals for Leave and Remain would have a lot of overlap), whereas it all stabilised afterwards. It's now clearly in favour of Remain; on the other hand, if a People's Vote was announced, it would probably start oscillating wildly again . . .
Anyway, I'm off to check the local ditches to see if there is a dead Boris in any of them.