It turns the entire game into the so-called “mother-may-I” game that lots of people despise.
This is something that has always entertained me. Story games like FATE or Spark or Story Engine or their ilk are denigrated by the OSR grognards because “it’s all GM fiat; if you can sweet-talk the GM into it, you can do anything”. And then they hold up … exactly the same thing as a strength of the OSR over modern trad games.