FrogReaver
The most respectful and polite poster ever
As you note, the freezes are still there, they are just in different places. Moving around the freezes isn't more simulationist. It's just moving around the freezes to different places.It is in the sense of allowing actions to be resolved one at a time for each participant instead of taking all your actions at once.
For example:
A moves
B moves
C casts
D attacks
A attacks
B attacks
C moves
D attacks again
instead of:
A moves and attacks (while B, C, and D are frozen)
B moves and attacks (A, C, and D are frozen)
C casts and moves (A, B, and D are frozen)
D attacks twice (A, B, and C are frozen)
RAW taking all your actions at once and then being frozen while every one else resolves theirs isn't very simulationist, but by allowing actions to be resolved one at a time all creatures are acting "more" at the same time, and not frozen (as long anyway).
It keeps players more engaged as well. No one is waiting around, looking at their cell phones, etc. because they know their next action is coming up soon. Tactics play a bigger role as well (we've added some things though to enhance this even more).
*Note my focus is solely on calling it simulationist. Whatever other merits or issues it has aren't my focus.