Brooks noted that if Eowa was a Northumbrian puppet, there would be the possibility that Oswald may have made moves to promote Christianity in Mercia at this time, thus accounting for the presence of monks in what was still a pagan kingdom.
Brooks sinalou que se Eowa era monicreque de Northumbria, habería a posibilidade de que Oswald puidese tomar medidas para promover o cristianismo en Mercia durante ese tempo, o que explica a presenza de monxes no que era aínda un reino pagán.