Not only do you bifurcate your entire product line and supply chain, your customers are not just individuals, but families. Think about a family who has one new phone that now won’t work with any of the chargers the rest of the family uses.
On top of that, the new connector type won’t be compatible with any of the pre-existing “infrastructure”. While that might not be a big deal for some single users, it could be a major issue for others.
I dunno if I buy that rationale, but they certainly were touting e-waste as the reason for omitting the pack-ins.
The other guess is that they are hoping to cost until a no-port future. However the fact that the iPad switched makes that seem odd. I expected the next phone generation after the iPad would switch but I was clearly wrong.
I guess they’re really relying on wireless -everything-