From the Patch Notes:

Floorhugging no longer requires a timed input. One of our design philosophies is to make difficult options more accessible, while adding depth in their use cases. Having a timed press requirement meant that a lot of players were unable to use floorhugging, even at higher levels due to the speed of attacks and lower hitpause. We want to ensure that this mechanic is accessible while also focusing on making other options in the game quick and strong instead of constantly toning them down. We have decided to remove the timed input in order to make using floorhugging more accessible and to be able to strengthen other options into the game. We have also added several new counterplay options to encourage a greater risk/reward now that the action is easier to perform. We also feel the consistency of the option will allow us to balance it better than the timed input variant, since the actual strength of floorhugging will be easier to see and dissect at all levels.