You used experimental parts like ETL (was still in development) and you guys were aware of this. Furthermore your roadmap was completely unreal, specially managing a new technology that nobody in your company was skilled on. If I was the CTO of your company I'd hire somebody skilled on OrientDB if this would become the foundation of my infrastructure. And you guys didn't model a Graph, but just kept the old model trying hard to let it working with OrientDB.
Last but not least, you never paid the renewal and in order to help you we provided support for FREE for 2 months. Sorry, but the main problem there wasn't the product, but the person that worked on this migration.
Maybe you lost your job because you wasn't able to do this migration, but please don't put mud on OrientDB.