I looked at the photographs used in one case and there was no way to identify the driver. Presumption of guilt does not seem to be in the best interest of citizens.
You are right.
The redlight-runners at Davis Road and US1 in Miami have their faces obscured by cellphones! Stopped at the light on my way from work, I watched these violations for years until FL DOT moved the stop line back on US1 and delayed the US1 yellowslowing all rush-hour traffic in both directions.
As the minority opinion here, I'd like to see a one-year study done where red-light cameras effectiveness are proved one way or another.
It's not a solution looking for a problem.