Why is this list utter nonsense? List shows movies that had the highest money loss...?

According to the link you provided:

"Many films on this list grossed more than their production budgets but yet are still regarded as flops. This can be due to Hollywood accounting practices that typically manipulate profits or keep costs secret to avoid profit-sharing agreements,[1] but it is also possible for films to lose money legitimately even when the theatrical gross exceeds the budget.

This is because a distributor does not collect the full gross, and the full cost of a film can substantially exceed its production budget once distribution and marketing is taken into account."

For example: Blade Runner 2049 may have had a $150 production budget, but it does not include the marketing budget of the film, which may be large as they produced 3 short films as part of the marketing.

Very few movies lose money when you figure in foreign sales and video sales, ect. But producers want to make their money back instantly and more, so if this doesn't happen, they are very unhappy.