Why is RX_SLOT 1 not used?

I guess this is about the line:
K1 869,400 - 869,650 MHz 500 mW e.r.p. 25 kHz2 < 10 %3
in https://www.agentschaptelecom.nl/sites/default/files/brochure-vergunningsvrije-radiotoepassingen.pdf ?

See also the wiki (band g3), or the forum, or Microchip