Agreed, we were stuck using Oracle at my job and it's an pain to maintain. Their cloud solutions are awful and on-premises suffered greatly. Their database engine might be solid, but everything around it was terrible. Things like PL/SQL being an unruly mess, even things like auto-incrementing columns were missing until the most recent release (12c R1). Coupled with insane licensing (arbitrarily changing the core factor for licensing) and auditing (soft limits, lots of hand-waving). It serves them right that they'd be losing out to Postgres.