the order of the options send to the engine can influence for example the startup time, e.g.

option.Threads=128 option.Hash=120000

might enable the engine to use 128 threads to zero the 120Gb hash, while

option.Hash=120000 option.Threads=128

will likely use 1 thread to zero 120Gb, which leads to a longer startup time.

Sending the options in the order they appear on the command line would give the user of cutechess-cli a way to optimize this.