I agree to an extent but as a counterpoint unless you're doing an Extreme or Savage, the explanation for most fights in this game boils down to maybe 10-20 words at most. 'Dodge the bad, don't look at the boss for this, etc'. It's really no skin off my back to hash out some basic pointers if it helps the run go smoother.

Now if it's an Extreme or Savage I'm in total agreement. You should at the very least watch a guide unless it was made clear from the outset when setting up a party finder that you want a blind run.