Tottenham has beaten United all 3 meetings this season and I've a feeling, United is waiting for the right moment to exert their revenge and there's no better revenge than winning the final.
This revenge statement made me recall a meme that resurfaced a few weeks ago, superficially about how a team is using another match as an outlet for revenge or something. It's a bit weird that you need to lose 3 times before you want to do some revenge tbh. But yeah, a final will always be a final. Unless an early goal happens, I think it will be a tight match. Hopefully, there won't be a red card or something drastic that changes the flow of the game significantly, so neutrals can enjoy it fully.
If their victory want to be tied down to Manchester united revenging then it will be very sad for them because they have planned revenge thrice now and all have been to no avail so it's will most definitely be something or plan that will back fire at them. But if Manchester united go into this game having it at the back of their head that it's the only hope for them reaching the champions league final then they will have more moral to win although same thing also goes for Tottenham.