Wikipedia is open to public, so it does not matter whose idea is that. Coptic language is tackled from various approaches:
01. Archaeological/Historical: Coptic language is treated as a historical language that is important for understanding manuscripts, esp. Bible, apocrypha, gnosticism, and patristic works
02. Religious: Coptic language is understood as the language of the Coptic chants and hymns where understanding it helps praying with understanding
03. Nationalistic: some find Coptic a symbol of nationalism eg Al-Umma Al-Qibtya (till 1950's), Claudius Labib and others.