i would guess it's same reason comp doesn't like local deployment or randomized bonus or any other setting that adds layer to the strategy
The reason randomized bonuses are not used is not about "adding an extra layer of strategy". It is simply hard to create games with them on CLOTS, tourneys, and QM. It is mostly restricted to members or paying coins for non-members, and member-only templates are seldom popular (mods, bomb card etc.) To get something to be popular, more people have to be able to play them.