Like usual, DE always 'fix' things individually instead of addressing the main cause. Just like how they nerfed Mirage, Magus Lockdown and Banshee because the problems they created themself.
Problem: Mirage's Explosive Legendermain causes severe lag because there could be so much of them activating.
Fix: Reduce range to fixed, limit duration.
Real cause: BECAUSE THE MAPS ARE SO #*!%ING USELESSLY BIG.
Real fix: JUST REDUCE THE MAP SIZE.
Problem: Magus Lockdown and other Warframe Ability can affect Thrax mid-animation so they can fell and 'lost'.
Fix: Nerf Magus Lockdown and Banshee so they can't affect MORE UNITS THAN THE PROBLEM.
Real cause: BECAUSE THRAX UNITS JUST LOVE TO JUMP ABOUT ON THE LEDGES SPAMMING THEIR THREE-LASER OR MISSILES
Real fix: MAKE THRAX USE THEIR ABILITIES LESS. Which also fixes the issue of how they're melting Defense objective on longer runs.