There's bound to be a certain amount of hype about a startup like this, but it strikes me as entirely positive and best of luck to Bruce and his team.
On the training side - it's easy for pilots in particular to forget that they are only one trade in a huge set of skills that are required to make aviation happen. The UK has arguably something of an oversupply of pilot training, and at the other end in design, but that is less true of training for example in maintenance, dispatch, technical support skills.... there's plenty of scope for a successful training and support business in the UK, but I'd not concentrate on pilot training myself.
But yes, 1000 jobs might well be a long term ambition, but it's hardly going to start that size.
G