Same here - but I don’t think the shipper delivery date is correct really.
Its better to prepare oneself on what others have experienced, I think the delivery date will change once the shipper has progressed it to the next stage.
My POV is that the gateway is finally on its way and its pointless getting annoyed by the shipper’s miscommuinication. TTN can’t really do much about it - other than highlight what can reasonably be expected based on other people’s experiences.
It seems normal that one has to wait an additional 4 weeks after a tracking number has been received. Under the circumstances of the whole TTN project, I can only say that for myself, that is OK. I hope you find it OK too - no point in getting annoyed when the date eventually changes