Uplay featured a $15 USD Rainbow Six Siege Starter Pack, but this version was not available on Steam, making the cheapest option on Valve’s platform much more expensive.
emphasis mine.
a “starter pack” is a collection of dlc for a game. all the dlc is on steam. the starter pack was not, making the dlc cheaper on uplay than on steam. rainbow six siege uses the steam backend for online play, meaning that the dlc in question is connected to steam, but available elsewhere for less money.
Did you read the article? This is about a completely different version of the game that was not even sold on steam.
i did. here’s what it says:
emphasis mine.
a “starter pack” is a collection of dlc for a game. all the dlc is on steam. the starter pack was not, making the dlc cheaper on uplay than on steam. rainbow six siege uses the steam backend for online play, meaning that the dlc in question is connected to steam, but available elsewhere for less money.