The problem with the Fermi Paradox is it is extremely human centric and thus subject to human biases. We make assumptions that we, in our current state of technology, should have observed signs of intelligent life by now and by virtue of not seeing anything, we jump to conclusions like Fermi/Great Filter/Dark Forest.
While humans may no longer view Earth as the physical center of the universe, they still view themselves as the center of the universe in terms of importance. So the fact that we cannot observe something, or nothing has decided to reach out to us in a way we would recognize, we jump to the conclusion that we are either the most advanced life in the local galaxy, or only life.
Ignoring the technology biases (we assume other civilizations are using the exact communication mediums we are), we could also just have an intelligence bias. We have trouble even recognizing it on our own planet, since we judge everything by the bar we ourselves set