The Midlanders arrived at White Hart Lane hoping to pull off a shock win just like they did in the memorable 1987 final.
Yet those hopes were dashed in brutal style by a strong Spurs side, who took the lead just 12 minutes in when Clint Dempsey stabbed home Gareth Bale's flick-on.
Bale pounced on Dempsey's deflected shot to double the lead and the Welshman then floated a pinpoint cross that the American headed home expertly from the back post to make it 3-0.
Spurs assistant boss Freund reached the semi-finals on two occasions during his five-year playing spell at White Hart Lane and he now wants to go even further with the north London club.
"We know what we want to do in the league, we have won the Cup eight times before and we would like to go all the way this year," Freund said.
Coventry took to the field in a replica of the jersey they wore 27 years ago but the memories of Keith Houchen's diving header, and Gary Mabbutt's unfortunate own-goal, failed to inspire the Sky Blues.
Indeed the only thing the 5,000 travelling fans had to cheer was a half-time appearance from Mabbutt, who was greeted with wild applause from the away end.
With Bale back in the ranks, Tottenham were always in control and Andre Villas-Boas' men would have had six or seven had they not eased off in the second period.
"It was a professional performance," Freund said.
"In the first half it was a different class. It was a great performance and we deserved the win.
"We didn't have to remind the players to be professional. They are really good. They put the opposition under pressure, they played with a high tempo and created chances."
Coventry manager Mark Robins, who won the FA Cup with Manchester United as a player 23 years ago, admitted his team were facing an uphill struggle once Villas-Boas named the likes of Bale, Emmanuel Adebayor, Benoit Assou-Ekotto and Scott Parker in his team.
"We always knew it would be difficult but it got more difficult when we saw the team sheet," Robins said.
"When you come to places like this you always hope the team you play against has a bit of a dip and that they take a few liberties, but they didn't.
"Spurs were magnificent today. Scott Parker led it and everyone followed suit. Whenever we got the ball, they were quicker than us and they got it back. It was a shame we didn't get a goal to take some heart from."
Dempsey's first-half performance in particular was one to savour for the home fans.
The American struggled to adapt to life at White Hart Lane directly after his move from Fulham in the summer, but he took his goals well and could have had another had his volley crept under, rather than over, the bar following an exquisite piece of skill on the edge of the box in first-half injury time.
"It was great to see Clint scoring twice," Freund said.
"He needs goals. Adebayor scored last time so it's great for the squad that we have strikers that are scoring."
Adebayor may not have the chance to score for the club for most of the rest of the month, however, as the saga over whether he will take part in the African Nations Cup drags on.
Adebayor, who is involved in a row with the Togo federation over unpaid bonuses, has until midnight on Wednesday to register himself for the tournament, which runs from January 19 to February 10.
"It's only speculation at the moment," Freund said.
"We are ready to wait for Adebayor's decision."