To be harsh for a second, from the transcript it sounds like you are using your son's disability as an excuse to dictate terms - I am sure there are a range of reasons people can come up with the bypass seating rules. Tallinn call centre is simply not equipped to judge case-by-case.
Yes, I do think that is a little harsh and it sounds like you fortunately do not have to deal with severely disabled children when you travel, I am happy for you for that.
I had seats together for them and then they were taken away. Not because of equipment change, not because of weather, not because of anything but an error SAS made when booking the ticket. Had they told me at that time that I could not get seats together, I would have gone to another airline who could. Doing that 48 hours before departure is a lot easier than doing it 20 hours before departure when I was faced with the problem. That is the essensce of my grievance: Expecting SAS to solve it in a reasonable way should go without saying as there was a solution (obviously). But being told by the call center to which I am directed in the U.S. that they basically don't give a da** about my son and his disability and the predicament their error puts me in was not my expectation. So talking about being harsh, being told they didn't like my attitude for protesting what could be a major cause of anxiety and potential disruption of a travel that could not be postponed, now thats harsh IMHO!!
By the way, in all of this, SAS did manage to charge me for 2 sets of tickets (around $6,000 each), one being several hundred dollars higher because that came out od Denmark in Danish Kr. and the other one from whom knows who as after just having talked to SAS, no one there knows either and with neither AE nor SAS able to do anything about it until business opens on Monday.
But
that I can deal with - risking my son sitting alone I can
not!!.