Maybe its been decided to not go any further?
Police will abort a pursuit the moment it gets too dangerous/deadly to anyone (themself, public or suspected criminal) and this can be deemed several ways....so again, with out knowing the complete story of that certain pursuit, it would be hard to comment much further on why or how the Excel driver got away from 2 police vehicles. My guess is it was not due to the driving skill of the police involved IF that is what you were implying.
And, have you spoken to anyone about your concerns on this matter? Be it politians at any levels or the Police dept/commisioners office etc??