True. But it does mean that Manafort would not have been indicted if he hadnt helped Donald J. Trump campaign for the presidency.And that means that the prosecution is selective on a political basis - and therefore should be thrown out of court.
The evidence the prosecution will present will be a pretext, not the reason, that the prosecution proceeds.
The prosecution may very well be selective and may very well be political but that is not a legal reason for someone being "not guilty". The job of the jury and the judge is to apply the facts to the law. How the case got there is not relevant to them.
I can see it being relevant to a jury nullification and I can see it being considered as a factor in sentencing.