OCS alternative forms and spellings

spelling is not more specialized in meaning than form. Words with different spellings are the same words in different script or orthography. Variant forms of a word are different words, closely etymologically related but with different pronunciations, reflecting regional or temporal changes. The unification scheme that you're advocating mixes different scripts, and mixes wikilinks to additional and different information (variant forms) with wikiliks with identical content in a different script.