Being manly isn't all about muscles, guns, cars and explosions. This is gentlemint, which references gentleman, who is sophisticated and classy. A gentleman is manly in the sense you're thinking, but he also does things which you may term 'unmanly', like eating well and dressing right. So just because this isn't a hunk of bleeding meat doesn't mean it isn't manly. It is just more of a gentleman's style.