1. There is a broad band of possible fragile support.
2. The 200 is some indication of probability for the north or resistance to moving far further south of it. However this is not a prediction.
3. Notably the on this time frame is quite low. Whilst RSI's are not entirely reliable, history has shown a propensity for low RSI's on the weekly DXY to be rejected - even for a few weeks.
What it means - if there is a weekly reversal - is that probabilities in lower time frames could be better estimated across some USD pairs.