The short answer to that is: no.
Pakistan has institutions: it has a judiciary, a Supreme Court, federal courts, provincial courts, local courts. It has universities. It has a thriving civil service. It has a very powerful military. It has a government, although it's relatively weak. But this government, will in all likelihood complete a full term, and this will allow for another government to be elected - hopefully without any interference by the military.
"I actually believe that some of Pakistan's darkest days are behind it and that we are seeing some indication that the country is moving forward - slowly."
Pakistan may not be a failed state but it is a state that is struggling with forces it created itself and with external forces as well. For example, it's in a complicated neighbourhood. There's India next door; a long and bitter rival. China , a staunch ally, lies to the north. It has Afghanistan to the East. Afghanistan is ostensibly an ally. But Pakistan has played a very destabilising role in Afghanistan because of its fear that a strong Afghanistan could pave the way for India to have a foothold in there, effectively seeing Pakistan surrounded. Then there's the geopolitics of the United States and Pakistan's role with the US and so on.
But the short answer to whether or not Pakistan is a failed state is no. It's a state with many, many problems but it's also proven to be a very durable state. I actually believe that some of Pakistan's darkest days are behind it and that we are seeing some indication that the country is moving forward - slowly.