It's not just Spurs making this decision - it's the Premier League, FA, UEFA, Police, etc...Why not? Just treat it as a normal game. There is no need for any fanfare, opening ceremonies and all that crap. It will be a normal European night game which at some point in the near future at that time will have to be played anyway
After all this time, all this waiting, there is no need to make up reasons as to why we shouldn't move in asap. An official opening can just wait if needs be