As I mentioned recently, I rode the train a few weeks ago while it was operating with just the driver. The driver was at the rear of the train, and the PA announcements were cycling periodically.
I'm not sure whether the 'mind your head' announcement was retroactively added, or whether it just wasn't heard prior to people smacking their melon into the roof. The station roof is a lot lower, because the platform has been raised.
While I applaud them for making this attraction entirely Wheelchair accessible, I feel as though they've gone a step too far - raising the floor to accommodate a roll-on carriage has had the flip side of reducing the headroom for normal passengers. Has this created an unintended consequence?
I know we're all laughing about being adults and able to not hit our heads on our cars and things, but we've talked for decades here about theme parks - specifically about guests checking their brain at the gate. A modern park attraction with such a high-risk hazard to the average population should never have existed.
They need to look into some sort of rubber bumper or other padded edge to these carriages.