That's not a club statement or an announcement, that's Berrada asked about Ten Hag in an interview or panel he was doing anyway, giving a standard answer. A standard answer that club bosses, when faced with the question, might give 2 days before a manager is sacked no less. It wasn't Berrada calling a press conference to tell us he believes in the manager that is in fact our manager.
It's nonsensical for a club to make an announcement confirming the status quo. The status quo is Ten Hag is the manager. A manager under threat, no doubt, but unless he is sacked there is no announcement. Any other announcement makes no sense, especially since they might have to sack him anyway in 3, or 6, or 8 weeks.