So explain how despite being the inferior side in all of their 6 matches in the knockout stages of the CL last season they still got through to the final. BorussiA Dortmund x 2, City x2(bar possibly your home game but still think we had the nod) and Ajax x 2. And then that lack of ability was rightfully/cruelly exposed in one of the worst finals ever seen .
With respect, I don't believe that your impression of these games matches the facts.
After a tricky opening, Spurs dominated the home game against Dortmund and won comfortably, 3-0. Dortmund dominated the return leg but the job was already done once Kane scored the away goal.
Against City, Spurs were under the cosh in the first leg until the saved penalty but City really didn't threaten Spurs' goal very often thereafter. Spurs created much the better chances and fully deserved the win, IMO. City were obviously the better team in the second leg but Spurs were still a big threat throughout with 11 attempts on goal and 7 on target. It wasn't the kind of backs against the wall fluke that you seem to be suggesting.
Against Ajax, in the first leg, Spurs were missing both Kane and Son. And you could tell that it really affected the team. Ajax totally dominated the first half. Their passing and movement was breathtaking and they really should have been two, three or even four up at the break. The second half was a different story, though. Sissoko had come on at the end of the first half after injury to Verthongen. And the change of shape gave Spurs far more control. So even though we lacked threat without either of our key strikers, we controlled the play - to the extent that, by the end, Spurs had levelled up possession and slightly surpassed Ajax for attempts at goal.
The second leg was a bizarre game from beginning to end. Ajax raced into a two goal lead (3-0 on aggregate) but were lucky not to have conceded a couple themselves. In the second half, Spurs dominated. Sure, the winner came very, very late but it certainly wasn't undeserved - as borne out by the stats. Spurs enjoyed 60% possession throughout the game. And they had 24 attempts on goal (7 on target) to Ajax's 16 (4 on target).
The final was, of course, a huge let down. The penalty decision in the first minute enabled Liverpool to play a defensive game. And, despite dominating possession and chances, Spurs didn't have the spark on the night to break through. Nevertheless, Allisson was man of the match.