How dangerous was this approach of a Dash8 Q400 really? There is a video going viral here of a Dash8 landing during a recent media hyped storm:

                
            
According to the description and imagery it is a Dash8 Q400 (registration D-ABQD), Eurowings flight EW9203. It did land during a storm with alleged 110km/h (60 kts) crosswind on Düsseldorf airport.
According to https://www.flightradar24.com/data/flights/ew9203 it landed at 12:13 local time on 18.01.2018, runway 23L or 23R. Within the video it is claimed that there is wind up to 110km/h whereas other sources from other places claim more like 80-90kmh (43-40kts), it probably varied by the minute.
Wind direction seems to have been mostly from west, with storm typical quick variations.
The crosswind limit for the Dash8 Q400 seems to be 32knt, quite below any of the cited wind speeds, however given the angle difference (230 to 270) a cited wind speed of ~50knt would have been just within the limit.
TL;DR
If there was the possibility of going to another airport (I have no idea if there was), should the pilot have diverted to a less windy area for safety reasons?
The relevant TAF that the pilot would have seen before going there is below (only showing the bits for the time of landing):


  TAF AMD EDDL 180929Z 1809/1912 22025G40KT 9999 SCT035
  TEMPO 1809/1813 26035G50KT
  PROB30 TEMPO 1809/1813 26045G65KT SHRAGS BKN015CB


So the pilot was aware of a strong cross wind possiblity, but even 26065KT is 27 kt crosswind (runway is 233) which is within the limits of the plane. So there was no reason to divert before getting there.

The metars just before and after the landing are below:


  METAR EDDL 181050Z 27045KT 9999 SCT037 BKN043 08/00 Q0993 TEMPO 27045G55KT=
  METAR EDDL 181120Z 27034G48KT 9999 -RA SCT028 BKN038 07/01 Q0995 TEMPO 27045G55KT=


So the "baseline" was 27045KT, i.e. 27KT crosswind, and the maximum gust wind was 27055KT, or 33kts crosswind, just 1 kt above the plane limit.

Note that the metar wind indications are rounded to the closest 10 degrees, so the worst case could have been a wind from 274 degrees gusting at 55 kts, or 36 kts crosswind.

We can assume that the pilot decided to continue the approach based on the wind information provided by the tower.

Whether the pilot should have aborted at the last second because the landing was not going as planned is hard to gauge on a video, but based on the information we have, the wind parameters were ok.