For me Sage Advice is more of a tool to settle discussions globally once and for all. Often when I ask SA to clarify a rule, this comes from page-long discussions on forums how a rule is meant in which people just couldn't agree on something. SA is basically a judge that says which one of the two+ possible interpretations is the correct one. A DM intentionally going against that consequently is a killer for me, because in the end I want to rely on a global understanding of the rules and not re-learn the interpretation per DM.
According to Sage Advice, that's not how Sage Advice is meant to be used.
SageAdviceCompendium said:In a typical D&D session, a DM makes numerous rules
decisions—some barely noticeable and others quite obvious.
Players also interpret the rules, and the whole group
keeps the game running. There are times, though, when the
design intent of a rule isn’t clear or when one rule seems to
Dealing with those situations is where Sage Advice
comes in. This column doesn’t replace a DM’s adjudication.
Just as the rules do, the column is meant to give DMs, as
well as players, tools for tuning the game according to their
tastes. The column should also reveal some perspectives
that help you see parts of the game in a new light and that
aid you in fine-tuning your D&D experience.