Bottom hugging is kinda a "problem/issue" on iera because the controls are so easy.On pc it takes years to master sparring,example;give a new player a mp5 navy,let him spam the bottom like he does on iera,you'll just flaw him from top because the shooting isn't as easy as on iera.Speed wouldn't help against bottom spamming.iEra is 300x easier than pc era(control-wise),sparring is ruined because of the easy touch controls.Pc era sparring is"better"because there its the skill,(how to move etc...)not the tactic that determinates the winner.
Bottom hugger with navy mp5 loses to professional top sparrer using lets say uzi.
On iera the navy user would kill the opponent easy.