As a reminder on how bad Lightyear was for Pixar, doing the 60/40 box office math on domestic/overseas ticket sales,
Lightyear lost $189 Million dollars for Pixar and The Walt Disney Company.
Production/Marketing Budget = $300 Million
60% Domestic Ticket Sales = $71 Million
40% Overseas Ticket Sales = $40 Million
Lightyear Net Loss to Studio = $189 Million
If Elemental continues on its current trajectory (with legs), it will still incur a net loss of over $200 Million to Pixar. 
We can talk about legs against The Flash all we want, but this business model is not sustainable. This isn't fine.