The reason why this issue involving Trump's whoring with Stormy is because it's a slow process that can defuse intentions of Trump's violent lieutenants. Do they wait for a conviction against Trump, or do the move to taking action now, before the charges against Trump build to being much more serious.
This can be seen as the trial balloon by the DOJ, for the purpose of weighing existing support Trump still has.
If violence doesn't erupt, the law will move accordingly to the crimes committed.
If violence 'does' erupt then the law will need to hesitate and slow down or even abandon the process.
Likely the biggest impact of this testing of the waters is the humiliation of Melania.