Too little info to go on at this time. I haven't seen any photos of the engine, nor
confirmation of the extent of a possible fan blade failure.
However the manufacturers do conduct full up blade loss tests and verify that the engine will remain on the wing even during windmilling for long diversions.
The only problems I have seen in the historical data is that although the engine is shut down by the crew that if the front bearing structure is severely damaged, then as the plane slows down to land the windmilling speed has a tendency to shake the passengers and their seats. No concern for the engine mounting or any airframe loadings which are designed for much worse in turbulence and gusts.
The pilots are advised to be prepared for such a crossover speed vs vibration change and if it causes difficulty in reading instruments to simply change airspeed up or down.
I presume, no injuries nor broken aircraft critical structures but will await the AAIB reports