Ask HN: Why are charts in Google Sheets so unintuitive?

Google Sheets basically ripped off Microsoft Excel in every way possible, except that the pivot tables, charts, and some other details are surprisingly different (relative how everything else is the same, including function names, etc). I got used to every other "differentiation," but it amazes me just how much trouble I have with plotting even the simplest line charts. Is it just me or did Google really screw up that part?