Scotland are due to meet Wales in their Pool B opener on Saturday.
It is a game which could decide which team makes it through to the quarter-finals, with Canada expected to top the group and both sides tipped to beat Fiji.
“I think it’s really poor timing for them, that they’re going through this now,” said Williams.
“I guess our timing was possibly a bit better,” with Wales’ woes coming prior to WXV2 rather than the World Cup.
And while Williams says she and her team mates “feel their pain”, there will be no time for sympathy in Salford.
“We are here to play rugby and we’re here to win that Test match,” she added.
“We know how important it is, so it’s just going to be who’s better on the day.”
