I'm sorry if you can't come up with a response to that, but it's a perfectly legitimate question. I believe that everyone who needs the WFA should get it and those who don't need it shouldn't because that saves the Government money. There are many more that don't need it than do, and those who do will continue to receive it by and large. There is a little bit of tinkering to be done around the edges, but the policy itself remains sound outside of that.
Your starting point appears to be that because the policy needs a small amount of rework it should be scrapped entirely and everyone should continue to receive the WFA as they always have done. Fine, that's your opinion, but who else has to pay in that scenario? Pensioners are the richest demographic on average in the country and have been kept largely immune from the impacts of austerity for the last decade and a half (despite as a demographic voting for it repeatedly). Now they are being asked to contribute a tiny amount and you'd think the world is about to end.