i want to make this VERY clear. low elo is bronze, silver, gold, plat and diamond thats 96% of all players so there is no middle to balance for.
but the difference between the two (balancing for low elo vs high elo)
is that the problems of low elo can be solved by getting better, but the problems of high elo can only be solved through a balance patch.
low elo players think that if you balance for high elo they get left out, but thats not how it works.
if you change the problem things at the top, it trickles down to the rest of the ranks.
then if you have a hero, for instance reaper when they giga buffed his self-heal, that is truely problematic, they can nerf the aspect of his kit that makes them broken on low elo without effecting them in any other rank.
and before you say “the average player is X”, people in plat have like 15-20% of the total skill potential (this includes everything you can learn or improve in), the halfway mark would be around 4000sr. this is why a diamond can smurf in plat, a masters can smurf in diamond and a GM can smurf in masters but a plat cant smurf in gold and can only smurf in bronze/silver. and thats why everything under masters is “low elo”, if we did have a mid elo it would be diamond which is only 10% of players.
so yes the average player is like silver/gold but that doesnt mean they are past the 50% mark, they still have ALOT of room for improvement and thats why even diamond is called low elo. its just a fact of life that the average player in a competitive game is WELL below the 50% mark, 20% is a respectable number for the average player particularly when you realize that someone in like 1500sr (the end of bronze) would have like 5% meaning a plat is 4x the player a bronze is.
(the numbers are estimates, but the theory they are based on its fairly old. ive talked about it before so im not going to repeat it here again.)