Plantinga’s argument isn’t against the reliability of our senses. It is an argument against the reliability of our senses given that naturalism is true. Since Plantinga rejects naturalism he is in a position to affirm the reliability of our senses on the basis that they are the result of more than just natural processes but the result of the intention of God.
As Joe Schmidt explains in the video, the proposition that all true knowledge rests on science is self defeating because science relies on basic assumptions that cannot be proved by science.
Evolution explains false beliefs just as well as it explains true beliefs. For example, why do we shiver when we hear a rustle in the bushes on a dark night? Evolution has programmed us to have a hypersensitivity to threat that in many ways creates an inaccurate picture of reality in order to boost survival. Given that evolution can produce such mistaken perceptions on a most basic level of everyday experience, why should we assume that evolution should have equipped us to accurately perceive, assess, make sound arguments concerning questions at such a high order of abstraction as the origins and meaning of the universe?
Once again, I should point out that I’m not arguing that humans are incapable of perceiving reality (I think Donald Hoffman is wrong about that, but he’s definitely worth checking out). The point is that given that we are able to perceive the world around us accurately, divine intention that humans should be equipped to understand the world is the best explanation for that fact.