I've spent decades in enterprise space and unfortunately developers often don't have a clue how actually things work. Companies like IBM specialise in royally

I've spent decades in enterprise space and unfortunately developers often don't have a clue how actually things work. Companies like IBM specialise in royally screwing companies through their licensing deals and with their legal enforcement teams. They are nothing like dealing with a normal startup vendor or with someone like AWS. They play hard ball. So sure you can complain that they should've just stayed with DB2. But usually that means paying tens of millions which then increase each year since they know you won't migrate. That's why companies take drastic decisions and move to the cloud even if it's technically not the best option.