Hi Manutoo,
personally I use the cross to get a more realistic repair in space to be as close to A.I behavior as possible, and I'm sometimes fustrated by its aesthetic, but it's not very important. I like everything else.
About dropshots, the ball does not end in the crowd sorry for this exaggeration, but often ends far away from the court. I feel the left/right button is very sensitive. I'll send some pictures or videos to show it, maybe it comes from my joypad.
And about the mood factor, first of course I don't ask any animation about body language

I even think a gauge is better because of different nuances it can bring. I was thinking about events I interpret when I see some losses in the real world. Sometimes we feel some confidence crisis in some player's behavior, that different factors can provide : H2H, a recent big loss (a GC final for ex.) or a set just lost that he/she had to win... (I hope what I say is understandable) But it may be some debate like there are on tennis social medias, maybe we make to much interpretations.
Sometimes in TE4 I feel, when I make a big comeback in a match, that it brings like a failure in the A.I's confidence as it starts making lot of faults. This may be due to the "mental strength" factor that is specific to the A.I.
But I just talk about factors, not animations

I woudn't make such a demand.
I see great progress in the game, I really like the new animations of the ball and the players you brought recently, with hardly catchable shots (the ball bouncing on the racket's edge, the player distorded on the side) because it gives a new sensation in the cadence of a point, and a new feel of the opponent strength.
The game at the net is huge, and now I often go at the net to finish a point (with or without success) or to change strategy, something I did more rarely before.
Thanks for your answers Manutoo, all the best to continue the alpha version in these hard times.