It is not important how many got banned it is important who got banned.
Example: 50 players got banned (all of them are above 2900 Rating)
Impact on Gladiator Cutoff: Cutoff (Rating needed) is now lower.
Example2: 50 players got banned (all of them are below 2600 Rating)
Impact on Gladiator Cutoff: Cutoff (Rating needed) is now higher
If my thinking is right, 0,5% of the players above and below the current cutoff need to be banned to have the same cutoff (before the ban).
So lets assume we have 10k bans of the playerbase above 1000 Rating.
312728 players above 1000 Rating
1563 Gladiators (Rating Cutoff 2695)
311165 non Gladiators
For every 200 non Gladiators there needs to be one Gladiator banned to keep the same cutoff Rating (+- cause it is possible that there is no player on that specific Rating anymore)
So 312728-10000 = 302728
1513 Gladiators (-50)
301215 non Gladiators (-9950)
Cutoff stays the same if 50 players banned were above 2695 and 9950 were below 2695 .
But if there are 100 players banned that were above 2695 and only 9900 below 2695 the new cutoff is now at 2682.
Lets say only 25 players are banned that were above 2695 and 9975 that were below 2695. The new cutoff would be 2699.
So without ladders beeing updated we can only ask one questions if we want a lower cutoff rating.
For every banned player above the current Gladiator cutoff there needs to be less then 200 Players banned below the current Cutoff.
Cause 1/200 is the ratio for getting one more Gladiator Title (0,5%).