The Panopticon/X language or X (language)

I've noticed a common trend among editors (including myself) is to name real-world language pages as "X language" and fictitious languages for the most part as "X (language)". Is there any real reason to keep to this, or does it make more sense for consistency across all language pages (with the exception of instances that don't need language disambiguation like Latin).

For instance, either: German (language), French (language), Baby (language), Gallifreyan (language), Heavenite (language).

Or: German language, French language, Baby language, Gallifreyan language, Heavenite language.

While as it currently stands, it's German language, French language, but: Baby (language), Gallifreyan (language), Heavenite (language).