Evans and Barry nevertheless started at the Hawthorns, but the hosts were up against it from the 11th minute when Wesley Hoedt capitalised on terrible defending to volley home from James Ward-Prowse's corner.
The pair, along with reserve goalkeeper Boaz Myhill and midfielder Jake Livermore, were interviewed but not arrested by police after allegedly driving the taxi back to their hotel without the driver at about 05:30 GMT.
West Brom have confirmed an incident took place on the midweek warm weather trip and are investigating it.
The four players were reportedly quizzed at a local police station in the wake of the incident.
Evans did not wear the armband during the 2-1 loss on Saturday, with Gareth McAuley skippering the side, and Pardew admitted he took such action in response to events in Spain, while insisting he still remains loyal to the players involved.
"There was a problem in terms of selection because of the incident", he said.
Pardew admits the upheavel above his head is a worry, and said: "They're good people and I was disappointed if I'm honest".
With left-back Kieran Gibbs missing through illness, Pardew chose to play Evans but stripped him of the captaincy to make a point. The guys professionally and their timekeeping and everything has been spot on. We had this one insane evening and it doesn't really reflect the professionalism and work that we do.
"We have to understand now when you've got this possibility, the cup is an wonderful thing", said Pellegrino.
"Craig Bellamy spoke last night [on Sky Sports' The Debate] about when he was involved in a similar incident".
"It's hard for managers", he said.
The last time Brighton were a top-flight team they reached the FA Cup final in 1983 and might fancy their chances of a repeat this season although manager Chris Hughton's decision to make nine changes in his starting lineup suggests the competition which he twice won as a player is not a priority.
- Since his debut for West Brom in August 2015, Rondon has scored 25 goals in all competitions - 15 more than any other Baggies player in that time.
At Hillsborough, both managers bemoaned the replay after second tier Sheffield Wednesday and Swansea City shared a goalless draw, with Swansea's Carlos Carvalhal suggesting everyone would have been happy to play on to penalties. "I've experienced this situation times before". The former Crystal Palace and Newcastle gaffer is even money favourite now from 10/1 Friday morning. The ball was whipped into the box from a corner and Pierre-Emile Hojbjerg was unfortunate to see his effort blocked on the line by Baggies defenders.