I agree that this is an issue, particularly with many Gen.Z'ers. It always puzzles me when people will start threads on this forum, along the lines of "Does anyone know how long it usually takes >insert retailer here< to send items?"
However I don't think that applies in this case. If I've already gone out of my way to be loyal to them (ie going to their website first), why should I go to the further inconvenience of calling and "negotiating" the postage cost. Especially when the times I actually get a moment to shop for this kind of stuff are usually during my lunch break at work, or in the evening when they're closed.