World war three?
The "punishment" budget?
The outright lies from Cameron about renegotiating after the referendum when he'd been told that was impossible?
I could go on.
Really, BN?
The reference to WW3 was one reference that Cameron made as part of a speech that leaving would increase the possibility of war in Europe. That was an OPINION.
The punishment budget was a reference to the fact that most economists agreed that the UK would be worse off in the short (/medium) term, and this shortfall would have to be met. Again, this was an OPINION.
Having watched nearly all of the debates, Cameron et al made very few references, if any, to these two items. Yes, they referenced security and the economy, but not these two items. And at worse they were "exaggerated realities" as you say.
The £350m was peddled as FACT at every possible opportunity. Over and over again, despite various 'independent' bodies claiming it was factually inaccurate. It was a LIE.
And how you think it is the same magnitude is genuinely beyond me. I can find numerous references to the £350m on Leave soundbites and websites. It was the favourite fact for Leave politicians. The same is not true for the two similar examples you cite. Clearly we do live on different planets.
I'm not denying that there were not plenty of sensible reasons to vote Leave. Many intelligent people voted Leave. But I feel that many less informed people were lead astray by a blatant lie. And that's very different to the opinion and exaggeration which is currently synonymous with politicians.