This was all done because Manchester United already knew Manchester City's weaknesses from Pep Guardiola's strategy.
I would take a bit of a risk betting on Manchester united to get the better odds.
I'm pretty sure Pep Guardiola will play the full main players. in the FA Cup final match, it is very likely that there will be no change in the pattern of the system. City will use the 3-2-4-1 pattern, while United are still in doubt. the question is, based on what do you know that Ten Hag knows the weaknesses of City's system.
Let's compare when City competed in the Champoins League, City did not give space for the opposing team to attack. because, ball possession is controlled by City players. well, in the match later, the scenario will not be much different, as usual City will dominate the game. meaning, like it or not, United's players went down to help the defense. Under these conditions, a single mistake by a United defender could prove fatal.
Conversely, there was no other choice for Ten Hag to just apply a counterattack pattern. in the match later, several defenders who became a mainstay of United are still injured. but fortunately, Ten Hag still has a pivot, namely Casemiro and Eriksen. if they perform at their best, the way to counterattack is in their hands. if United manage to do it, it is very dangerous for City. even so, City are far superior and the probability they have is very high. well, I'm more interested in betting Under / Over.