I don't know what reasonable is, because we all view it differently. I think that they confirmed you in one class of service and then removed it, so you have some reasons to ask for something. Maybe an upgrade certificate to be used on a future flight or maybe accrued miles/eqms as if you had flown first. It appears you may be eligible for compensation...

I just feel fortunate that my experience was handled with no prompting at the gate. What this really shows is a lack of consistent customer service which becomes a brand identity problem for the airline down the road.