You've corrected the buyer vs. seller agent thing, but I still can't make sense of this. The seller was always going to pay the buying agents commission (they hoped to negotiate a lower rate) - so why is that agent hostile to the sale and/or blackballing the listing? The only reason seems to be to protect the system they benefit from, at the expense of the buyers and sellers.

In such a situation the embedded interests (agents) may well be antagonistic to change, but it doesn't mean that change isn't globally a good idea....