Whether a DM chooses to rule according to JC’s opinion, or according to a strict reading of the RAW, or according to any other opinion of their own, I am fine with it. It all conforms to the philosophy that the DM has the last word, which I adhere to.
Personally, when DM-ing, I like to err on the side of the RAW, and by the RAW, I consider that all Sage Advice is 2014 editorial content. Therefore, any piece of 2024 rules supercedes overlapping pieces of 2014 rules (including SA).
That is the whole point of putting out a new edition… to smooth out rough edges and in particular to clarify anything which players have reported as being ambiguous. By definition, any question which was answered by SA was something the company acknowledged to be ambiguous. Therefore, when putting together the 2024 content (which JC participated in, before leaving / getting left, however that happened), was supposed to integrate and reconsider all of those SAs.
Whether the 2024 text conforms to the SA ruling, or reaffirms the 2014 RAW text, or goes in a completely different third direction, does not matter… in all cases, the 2024 text supercedes 2014 and the 2014 era Sage Advices.