While you are right in that we tend to form opinions based on limited information, I'd say in this case it is likely to be warranted.

What I try to look out for are statements that are easily disproven by the other side if false. No highly paid PR person would release those, thus if they are there, they're likely to be true.

Now with those easily disproven claims in this press release as cornerstones of what is the truth, I can't come up with data points that would drastically alter my conclusion.

Now all that's left to do is hope that that isn't due to my limited imagination and wait for the opposition to make new claims or disprove the points made.