Moving them from Germany to Poland is a reasonable move in my opinion. Poland is pro-solidarity, iow, they value freedom. They’ve been more than friendly to the USA. They are much cheaper than Germany, so those draw-down forces in Germany are probably just moving up the road a bit.
There’s sense to it, but I’ll believe it when I see it, and if I were Poland, I wouldn’t count on them being there very long.
And that is exactly what is pissing off the Russians. When the Cold War ended and the Warsaw Pact folded, the Russians went home. Their fear was that US/NATO troops would "move up the road a bit" as you put it. In other words we didn't go home.
Time for Western Europe to put up or shut up and if they want to slug it out with Russia over the Ukraine, they don't need US troops to do that.