Typical indian relatives say this and then eat a whole plate of sweet,a bowl of halwa(a kind of pudding) and a whole meal with desserts and then say "are aapne itna kyu kiya,iski kya jarurat thi"(oh why dod you do all this works to cook a lot,it wasn't needed) with a creepy laugh lol
Because it IS wrong .
Though this is what the sentence actually means , in terms of translation, it is wrong , because you're omitting the meaning of the words ठीक है which either means 'fine' or 'okay'.