+1. I think nonstop flight is much better than connecting, and available nonstop routing the likely source of the offer (although status could have given you priority if there were several passengers flying the same as frankly it was a nice offer).

I also agree with Prospero the TP answer was simply lack of knowledge. Do remember that BAEC and BA are two different things. Most BA people have no clue about BAEC and if you ask them a question that relates to it, you may often get answers that are simply wrong. If you had accepted the offer, you would have been able to claim the Avios and TPs for the original routing whilst enjoying a couple more hours in Amsterdam, a hot meal and a less tiring trip! I would have said yes in a heartbeat...