And the way statistics work, a 90% forecast is truly a 90% forecast - they weren't wrong with this. It's just people think 99% chance of winning basically means "they won". But that's not how it works. So the idea that these numbers are misinformation is incorrect, it's that media is using a metric that the average person has trouble comprehending.
Isn’t that a clear case of disinformation?
It is probably impossible to have the complex dialogue sufficient to inform people both intelligent and willing to put in the work in a way that is not apt to either be misunderstood accidentally or more frequently on purpose.
Something like this only rises to the level of disinformation if the media (or whoever) deliberately presents an accurate piece of data in a way that it knows will not be understood.
If metrics that average people don't understand was disinformation than 90% of my job would be disseminating disinformation. It's not. Instead, a large part of my job is explaining the metrics.