Maybe, but SEGA seems to muddy their own case as their official support FAQ section [1] states:
"Will I still be able to play the SEGA Classics games?
Absolutely! All SEGA Classics games and bundles you own will remain in your library, ready to be downloaded and played at any time."
Note the "you own" here that is in dispute with the Steam user agreement.
Note the "you own" here that is in dispute with the Steam user agreement.
[1] https://support.sega.com/hc/en-gb/articles/29776767664145-SE...