The WTO negotiations and bilateral negotiations are fundamentally different.
In a bilateral negotiation, you can't address domestic subsidies. You can't address export subsidies in any meaningful sense, particularly in relation to the U.S. and Europe, where most of the problems originate. Bilateral agreements are largely about improving market access. You can get gains in specific markets. You might displace some of the countries in that market because of those advantages. But in terms of any broader advantages to improving the system, you really can't get it out of a bilateral agreement.