Actually they do, it had the same drop off in percentage from TFA, that AotC had from TPM. Most considered AotC the most hated film up until TLJ came out. Initial projections for TLJ were set at 1.8bil and it fell 500million short of them.
The same drop-off can be seen from the original Star Wars and Empire Strikes Back. At worse, all that says is that it is indeed polarizing, but it doesn't indicate that the hate was as bad as people say it was. Again, if it were as hated as people stated it to be, the drop-off would be worse. It wouldn't have had the multiplier it had.
Also if people were disappointed with it - they had to see it to be disappointed with it. How many of that 1.3billion worth of viewers hated it? We can't know for sure. Even with Solo failing we can't be certain. Only Episode 9 will tell.
Yeah I agree with this. I see Solo as a case of people simply not being interested. Episode 9 can be a good indicator of how good/bad public opinion has over TLJ. If it does TLJ numbers, I think the franchise is still safe.