Nice map -- not much evidence

This is an attractive map from a very detailed and technical chapter on glacigenic sediments by Prof Dave Evans. Caption: "map showing major ice flows (at the time of the Devensian or LGM) onto the continental shelf (from Ó Cofaigh et al. 2012)".  Very generalised, I know, but........ on the east side of St George's Channel it bears no relationship to the evidence on the ground.  I know the Pembs coast pretty well, and all of the Devensian exposures, and I do not know of any evidence that shows that the ice moved from NE towards SW.  The arrows are 90 deg out from where they should be.  ALL of the evidence that I am aware of shows that the LGM ice flowed from NW towards SE. 

Whose fault?  Colm O'Cofaigh and his colleagues?  More care needed in future please, chaps......... 

Chapter 4 Conceptual glacial ground models: British and Irish case studies
D. J. A. Evans. 

In:
Geological Society, London, Engineering Geology Special Publications, 28, 369-500, 2017, 

"Engineering Geology and Geomorphology of Glaciated and Periglaciated Terrains – Engineering Group Working Party Report"

https://doi.org/10.1144/EGSP28.4