bit.tube is moving. Any way to save the content of deceased content creators?

There are several youtube-alternative websites that come and go like farts. One is called bit.tube. I got this email from them just now:

"Bit.tube website is migrating to BitTubers.com

To continue getting monetised with AirTime you have to create a new account at bittubers.com or the BitTube browser extension. Once you have an account, you will be able to link your current bit.tube profile which will give you access to your wallet and the option to import your content. We will take care to inform all of your subscribers about your new profile at BitTubers.com."

It sounds good. The old site says "Things change for the better!" But, there are many people who uploaded really good videos who are now dead. Seems the better the video, the better chance they passed on. Those videos will not normally be migrated to the new site. They will be deleted in September 2019 with the old site. Perhaps that's the whole point of all this.

Anyway, is there any way for people to download content from bit.tube of deceased content creators and upload it to bittubers.com? I tried ytd. Site not supported. Any ideas? Thanks in advance.