It doesn't address the behaviour. It is a cack-handed attempt to remove the motivation, but easily evaded. They could have stipulated that bonuses over X% of wages should be paid in bonds (the ones that get the bigger haircuts), and then allowed the bonds to be sold off immediately. That would give an early warning of the employees, and the secondary markets, level of faith in the business. One which is far less susceptible to manipulation than Libor - albeit surely less liquid.
This would still have some of the negative implications of the current plan, but would at least have the value of enabling the market to provide useful information, while limiting the need for banks to convert half their wage bill into the sort of payments that are hard to claw back.
I have, if anything, a vested interest in the banks losing out to hedge funds and private equity outfits, these being the majority of my employers. More money would ultimately go into my pocket if it were possible to make it stick. But I object in principle to doing things that are counter productive and ill conceived.