The benchmark itself is kinda useless, so I don't see why they should. If you look at tpc-h for years, you had exasol as a top dog, but in the real world that meant nothing for them.
Exactly, companies learnt from Exasol
Out of the box performance is the name of the game
Executing a benchmark as complex as TPC-DS without tuning by Databricks or Snowflake is a big accomplishment