TV has a fairly bad record of keeping shows that are already shown to be good alive though because good does not equate profitable for the network or individual decision makers (which are again no the same thing).
That's just one of the things that has to go right: marketing, finding the audience, being in the right places and place in time for your target viewers, etc.
That's just one of the things that has to go right: marketing, finding the audience, being in the right places and place in time for your target viewers, etc.