Stupid question about master/slave clock arbitration on the gameboy's SPI interface

[spaceharrier]

I am working on a wireless extender for the gameboy's SPI interface. I've dug into Nintendo's developer documentation, an I think I have a solution that utilizes inexpensive hobbyist solutions:

Currently, my design uses 4 different radio channels on the 433 Mhz band. One channel for MISO, one channel for MOSI, and since master/slave is arbitrated by first-come-first serve on whoever drives the clock line, I have two channels for the clock signal with a microcontroller intervening and deciding whether or not to drive or read the clock line on the gameboy's comm port. This requires 8 cheap RFM69 modules (with proper antenna separation.)

If I wanted to reduce the radio count and antenna count so that the clock signal is directional, would there be any situation in which only one of the gameboys transmitting the clock causes software issues for anything commercially released (meaning that one gameboy always wins the master/slave arbitration in two player games?)