I was tempted to agree first with deadrat and then with JavaLatte but after all, it's more subtle than that..
Yes, “the English Language” refers to the tongue spoken by billions all over the world and I now think that more importantly “the English Language” refers to the tongue as a particular example of the concept of language in the abstract, while without the article, “English Language” more likely deals with specific, concrete details.
A not-very-good - nay, a rather poor analogy might be to leave “the English Language” to describe a concept and to use just “English Language” when referring to either poetry or prose, depending on context, but not the whole shebang.