I upgraded our phones (me/wife) from the 11 to the 14 Pro. The upgrade is significant. Anyone upgrading from the 13 should expect very little and that is what you got. Nobody says for the most part that everyone should upgrade every year.
I really do laugh hard at people being upset at what they get on upgrading every year.
I find this mostly a logical claim. I think there are a wide range of scenarios, budgets, expectations, and not one size fits all for any person's situation. For some, any year to year jump might be relevant to THEM and they are happier. Others might be best waiting. The problem I have is when any one pushes their own situation on others, as if it applies to every one else in general.