It wasn't even required, as the previous games have a "suit shortcuts" option that lets you double tap various commands to switch between suit powers; jump or melee for strength, crouch for cloak, sprint for speed, and back for armor. I much prefer that system, particularly the fact that you can power jump instantly, rather the the delayed power jump in Crysis 2.
Actually the the power jump in Crysis was delayed as well, and it infact took you longer to make the 2nd jump after you land the first one, when compared to the time it takes in Crysis 2. and changing the mode took some time as well, so it balances out well imo.