I would add that this doesn’t “solve” the issue. It dodges the issue, which is whether or not atheists can sue to eliminate crosses or the Ten Commandments or anything Christian on government land or in a government building.
It does, at least, preserve the cross. But that never should have been in question in the first place.
Many trees exhibit the shape of a Cross. The only thing we can do is clear cut all national parks and forests. Also, the letter “t,” looks like a Cross so the federal government should not use the letter “t” in any documents or laws. It’s the Constitution.