Jahongir Jiyamuradov's penalty a fortnight ago in Karshi settled the first-leg of the semi-final in the Uzbeks' favour, meaning a crucial away goal would see Al Wehdat - for whom Jordan international Abdullah Deeb returns - needing to score three times to go through.
"In the last match, it was possible to come out of it with a better result but we did not have the luck. This led to the players not being able to score a goal but the Uzbek goal gives them a partial advantage in the next game," said Kwid.
"Tomorrow's [Tuesday] match is easy and hard at the same time. It will be difficult if the team is unable to turn opportunities into goals or the players do not show the required strength, but if the players are in their natural state then the match will be easy for the team."
Nasaf will be without Bojan Malisic through suspension but boss Anatoliy Demianenko shrugged off the Serbian defender's absence as they bid to become the first Uzbekistan team to reach the AFC Cup final.
"My team has a group of players with the same level and will not be affected by the absence of one or more players," he said.
"I, to this moment, have not decided on the structure which will start tomorrow's [Tuesday] match in light of the equality of level in a lot of the players."
Arbil travel to Kuwait SC trailing 2-0 from the first-leg in Iraq as the visitors took the upper hand with goals from Jarah Al Ateeqi and Boris Kabi following Aws Al Hamadi's dismissal for the home side at the end of the first half.
Arbil boss Ayoub Odisho felt a couple of key decisions went against the Iraqis, leaving them with an uphill task at Kuwait SC Stadium to reach the final.
"Everyone saw how we were controlling the game and how we were more dangerous and had more chances on goal but the sending-off, one of the referee's most prominent mistakes, shifted the currents of the match to the advantage of the Kuwaiti club, not to mention the second goal in which the striker was offside," he said.
Kuwait SC boss Dragan Talajic played down the referee's impact on the final outcome as they attempt to reach their second final in three years having won the trophy in 2009.
"I do a lot of hard work with the team and I do not accept from anyone, whoever they may be, to ignore this effort or undermine my team's power," he said.
"Everyone knows that refereeing mistakes are part of the game of football and everyone saw what the referee in our second match versus Muang Thong [in the quarter-finals did].
"And despite that I never talked about the refereeing in the press conference because I know that it's part of the game and I have to accept it, even if it is unjust."