Probably a good thing. The most complex part of Web SQL amounted to "Whatever SQLite implements", neither Mozilla nor Microsoft supported it making the standard effectively irrelevent, and I remain thoroughly unconvinced that providing an extremely thin JavaScript API to an SQL-driven database is an elegant solution to this particular problem. Presumably the W3C have decided to favour IndexedDB instead, which solves…
The most complex part of Web SQL effectively amounted to "Whatever SQLite implemented" Which is one of the most tested, most utilized, most known pieces of code used among modern software. Saying "reference it" is entirely rational. And really the ludicrous notion that documenting its behaviors is unfathomably difficult is so asinine that it demolishes that line of argument. neither Mozilla nor Microsoft supported it…
SQLite isn't quite SQL. It has weakly dynamically typed columns (will happily store strings in INT column), and ROWID/auto increment is icky (magic behavior with special-casing for backwards compatibility).