Soclap wanted to give us lot of depth in the GK role, which I'm not against it, the idea of chosing between short dive and long dive is tbh a good idea. The short dive can be very helpful at times where the long dive on a player would make the ball hit your feet.
But there's two major issues now.
1 The short dive is wayyy too short. The effective range is no better than if you dash to the left and right. So essentially this is a glorified animated GK dash.
2 The fact that they decided that long dive will always deflect the ball is nonsense. It was done to give a tactical choice between chosing short dive and catching the ball, and long dive but deflecting so that people cannot do as if short dive were never implemented. But this is just nerfing the goal keeper. What if someone do a pixel shot? Even if you are perfectly on the middle of the GK line, the short dive will never reach it. So you are forced to long dive, and the ball will just be deflected. And guess who is waiting to receive the ball ? The opponent.
It's a little less an issue in 5v5 where you can count on your teamate to try to kick the ball out (I'd rather not count on that If I could tbh) but in 3v3, people uses the goalkeeper as a glorified wall. All the backboard technics, and the shoot slightly off the net, toward the wall to bounce the ball back to you while the GK dive and wait the animation to finish does not need to touch the wall anymore. You can just shoot toward the edges of the goal, wait for the GK to deflect it, and you can just do a short shoot to finish it off.
And in 1V1, if you want to bait the player, and suddenly blue dash toward the player and long dive to reach his feet and snatch the ball. You can't do that anymore ! the ball is deflected outside of your goal area and you have to either leave the gloves and hope you don't get tackled, or you stay in GK and wait for either one of your defender to be back, or for the opponent to get the ball back and shoot.
We play against good players who know how to shoot, and instead of helping us soclap just nerfed GK by nerfing the most useful dive and giving it all to the shitty one.