Hardly.
This stadium build is a massive, complex construction project that had an incredibly tight schedule. Despite this, the stadium remained on course to open on 15th September (albeit with some jobs yet to be completed) until the first test event exposed serious issues with safety systems. So the stadium will be delayed by a further month or so. Disappointing, certainly. But not farcical. Anyone in the construction industry will tell you that, on such big projects, such delays are commonplace.
Once the stadium opens and everyone sees how impressive it really is, the couple of months' delay will soon be forgotten.