The increase in operating system updates to 7 years seems like a great achievement and going from the current 4 years to 5 years seems enough to me and 6 years of security patches, who currently has not changed their phone after 5 years with the same one but yes Samsung puts it the same as Google with 7 years of GREAT OS updates.
I would admit that these updates were also made with the S23 series onwards, so Samsung would sell many more phones in 2024, not only the S24 series but also the S23 series and would increase its credibility compared to the competition that only has 3 years of updates.