Paul can do things on his own terms. This was always a project close to his heart. He won’t do a new KISS album because he knows sales won’t make it viable, so why should he care majorly on sales for Soul Station? As others have said, he grew up on this music way before Zeppelin, Humble Pie etc.
He knows, vocally, that he can pull this off, and tbh I think his voice holds up very well on th