I just saw a webnovel with emojis.
Frigg'n emojis!
So obviously, you can incorporate a way to design tables in Inkstone or at least allow some html editing (with hyperlinking disabled) in fiction. We've seen some novels with clickable footnotes in desktop mode, so I assume footnotes are in the pipeline.
But please understand that it is absolutely essential for System stories to have a way to edit and display tables. I simply cannot post my System stories on Webnovel without those features. It's just incredibly difficult to make a workaround for Webnovel when virtually every other web novel platform has those features.
It's 2019, bring back the table!
