Don't let your common sense cloud your reading comprehension. He may indeed have to wait for his trial for 2 years in preventative jail, unless he can cough up €30k.

Mine, oddly enough, had landed me in the same prison that once housed many of the anarchist revolutionaries of the Spanish Civil War. Once I arrived, I got down to just about the only thing one can do in prison: waiting, and organizing my new life within its much diminished horizons. At first I was under the impression that trial would come within a few months, but soon I found out it may take two years.

Yes, that's his trial. And then he talks about another trial

On 22 May, another trial starts in Barcelona after two years of waiting, and the verdict may put five innocent people in prison for three years and nine months.

Luckily for them, time spent in preventative prison is discounted from the sentence if they are convicted. Unlickily for them, if they are acquitted compensation from the Spanish state won't be forthcoming.

By the way, I can imagine a reason for the hefty bail, and that is that, being a foreigner, if let free there is substantial risk of flight.

In any case, an American citizen, if that's the case, should have received consular assistance after his arrest (never mind that the US routinely violates that requirement, I won't insist on reciprocity) so if he didn't receive consular assistance that might be grounds to challenge his imprisonment.

Bush is a symptom, not the disease.