If they gave more time than just a few months, in example at least an entire year, then people could at least download those files before hand. Not sure how long this would take and how stressful this would be for their servers.
They could also give the option to pay for this. They should know what storing a video costs and therefore could give creators the chance to cover that cost.
Twitch’s new storage limits will purge huge swaths of Internet gaming history (arstechnica.com) angielski