Without checking for other clubs, that doesn't sound unusual. Strikers in general will have fewer touches than midfielders, central defenders, fullbacks etc. Doesn't really prove anything. You could also argue that they have few touches, because they fail to get properly involved in the game. More importantly they lose the ball way too often through poor touches, being outmuscled or something else.
Our lack of goals is multifaceted, no doubt, but put simply the striker position is arguably the one where we have the least quality right now alongside LWB.