You are technically correct though, older versions only used JASS. However, LUA was added to Warcraft 3 in patch 1.31a [1].

> See World Editor Updates for more details on many additions and improvements including beta support for Lua

[1](https://liquipedia.net/warcraft/Patch_1.31.0)

Oh right, I forgot Reforged (and the accompanying changes to the base game) was a thing