A project ending as abandonware is always a possibility. One reason projects get abandoned is losing funding, which can be secured by using dual licensing and selling some features to businesses.
They use AGPL so even if they broke their promise and restricted features, it could still be developed further (even if no new features got added). NGINX also uses a dual license.
Mindfactory is selling Factory Recertified Seagate Exos and Ironwolf Pro.
They were also reportedly one of the shops (unknowingly) selling used HDDs with SMART values reset as new.
https://www.mindfactory.de/Produkte/Seagate_Factory_Recertified/