No. As I said previously [0], means testing is not the problem per se. The problem is a particular simplistic way of doing means testing, which is what mathematicians call a step function: below a certain income value you get 100% of the subsidy, and above it -- even very slightly above it -- you get zero. So there's a point where increasing your earned income very slightly results in a massive decrease in your total income.

It's very easy to describe and administer such a subsidy, but it has a terrible bug, which is obvious and everyone has known about it for decades, but somehow we haven't mustered the will to fix it.

[0] https://news.ycombinator.com/item?id=13202659