Tuchel's side were bereft of quality in the final third as they succumbed to only a third defeat in their 26 matches in all competitions.
The chair of an advisory panel comprising elected representatives from the fanbase will be appointed annually on the club's board, Tottenham said on Tuesday.
The Gunners, languishing in ninth place in the table, look set to miss out on European competition for the first time in 25 years.
Europa League: ‘What I felt last night was a deep pain,’ says Mikel Arteta after Arsenal’s semi-final exit
The exit leaves the Gunners, ninth in the Premier League, on the cusp of facing a first season without European football in 25 years
Villarreal's first European final prevented a clean sweep for Premier League sides across the Champions League and Europa League.
Premier League: Arsenal's Pierre-Emerick Aubameyang reveals being ‘really, really down’ while battling malaria
Aubameyang has only now revealed how a sudden drop in weight and change in mood had his relatives worried about his health.
Premier League: Club legend Thierry Henry warns Daniel Ek's Arsenal takeover bid could take a 'long time'
Spotify co-founder Daniel k has gone public with his desire to buy the struggling Premier League giants in the aftermath of fan protests against Arsenal's involvement in the failed European Super League project.
Fourth bottom Newcastle remain nine points clear of the relegation zone with four games left.
Europa League: Manu Trigueros, Raul Albiol on target to clinch bittersweet win for Unai Emery's Villareal against 10-man Arsenal
Pierre-Emerick Aubameyang might even have snatched a late equaliser for the visitors but Mikel Arteta will be delighted his team are not just in the contest but in a healthy position too, with an away goal to take back to London next week.
Premier League: Arsenal owners have shown commitment to club after takeover rumours, says boss Mikel Arteta
Swedish billionaire Ek last week sent a tweet saying he would be interested in buying the Premier League club, which is owned by American billionaire Stan Kroenke through his Kroenke Sports & Entertainment (KSE) business.
Thousands of Gunners fans protested outside the Emirates Stadium ahead of Friday's 1-0 defeat to Everton after they were one of 12 clubs to initially sign up to proposals for a breakaway European Super League (ESL).
“When I was young, I was just trying to make sure I could get a pair of boots and now we’re talking about the Hall of Fame," said Arsenal legend Thierry Henry.
European Super League: All 12 Clubs bound by contract; project will happen in 'near future', says Real Madrid president
In an interview with Spanish sports daily AS on Saturday, Real Madrid president Florentino Pérez said the clubs can't back out like some have announced.
Chants of "We want our Arsenal back" and "We want Kroenke out" were mixed with expletive-ridden outbursts.
Everton remained in eighth place, but the team was only one point behind rival Liverpool and in touching distance of the Champions League places. Arsenal stayed in ninth place.
Protests by football fans carried the same zeal and fury we've seen from protests from all over the world. The cause was righteous, it was personal.
A wholesale review of the way English football is run that was ordered after the European Super League debacle will consider creating a new regulator and changing the "fit and proper person test" for owners.
Arteta has had direct communication with the US-based Kroenke family over the controversial scheme and, asked if an apology was made, he said: "Yes, absolutely.
"The important thing now is that we move on, rebuild the unity that the game enjoyed before this and move forward together," Aleksander Ceferin said.
European Super League: Chelsea preparing to ask out of breakaway league after backlash from other clubs, fans
Chelsea were preparing documents to tell the Super League they want out of the 12-team plan, a person with knowledge of the decision said.