Unlucky is when there is more than an evens chance of a different outcome but circumstances transpire against you like say the last 10 cars which included the OPs were on a boat that sank in the Atlantic. Tesla stopped production before Christmas, knew full well they were coming out with an update, but still let the OP place an order knowing there was probably no chance of fulfilment. . Thats not "unlucky" by my definition.
OP.. Tesla treat you like this while trying to spend £100k - imagine what they'd be like once they have the full payment; You'll probably hear nothing for 10 months, then you're hear that they're shipping and others are getting cars with identical spec to yours and you've not been contacted (this happened with the Model 3), and then you'll get a message saying "Tuesday next week, please deposit £100k in our bank account or we'll assign your car to someone else" (something they also did with the Model 3). Then when you get it, any fault will be within tolerance and if they do concede it needs looking at, will take the car off you and keep it for 4 weeks.
Look up Gangzoom - it took him 3 years to get his Model X fault free, now he daren't sell it.