The leaking and the waterfalls we all saw on TV are not an unsafe stadium , after all they need a current safety cert to open, they are basic maintenance issues and have been for a while.
The stadium needs money spending on it, first priority is getting the roof sorted, but its not just the stadium , I have read that Carrington needs money spending also.
The cost of a new state of the art stadium is huge, Spurs new one cost £1B, with the cost of stuff now, I think you could easy double that, who has that money, would INOS pay it, I have my doubts.
Something needs to be done, we are a laughing stock on and off the pitch and TBH I dont see either changing for a good few years.