I just realized that Second Class passenger William Mellors could be an exception to that situation. I found a couple of statements in the book
On A Sea of Glass that suggest that he was already well forward on the boat deck in the vicinity of Collapsible A
before the wave hit. On p229 of the book there is information based on a letter written by survivor Eugene Daly to his sister Maggie in Ireland less than a week after the disaster. Although eventually rescued on
Collapsible B, Daly's description of his activities while helping to fee a collapsible lifeboat in those last frantic minutes has made the authors deduce that he was referring to Collapsible A at the time and not the lifeboat that he was actually saved on. Among the people who were with Daly at the time was William Mellors; even though Mellors was a Second Class passenger and Daly Third, they both survived and had 3 days on board the
Carpathia to introduce themselves to each other.
Also, on p231 of OASOG there is more information that strongly suggests that Mellors was already well forward on the boat deck when the wave hit. In a private letter written to Dorothy Ockenden on 9th May 1912, Mellors said that he was near Collapsible A (the same lifeboat that he was rescued in) when the wave flung him onto a stanchion, badly injuring his ankle.
PS: On those pages of OASOG, only the relevant information is present. The actual references are in the Endnotes for that chapter.