No, Dota had “active progamers” balance it and it got turned into a terrible game with heroes that are ONLY playable by a handful of players in the world.
Yes, 5 players or so abusing a hero with very complex mechanics caused the entire playerbase of 12.5 million unique players per month (at the time) to not be able to play said heroes in ranked anymore (techies, earth spirit, oracle, etc.)
I absolutely hate the fun being taken out of a game just because some pro players “abuse it”, I don’t care if they abuse it, if people do it it’s most of the time cause it’s fun.
See: Navi ti3 fountain hooking.
Did they have to do it to win? No, of course not… they intentionally picked Pudge/Chen (pudge who wasn’t that good in pro games) reducing their chances of winning just to have fun fountain hooking.
They won in the end and people complained, so what? it was a mechanic in the game and it was fun, everyone was excited looking at it, why should a game be balanced ENTIRELY for pro players when pro players play for the viewers not for themselves, they earn money from having lots of viewers who are enjoying the games.
Right now, I see a lot of fun stuff happening on ladder, I see people consistently playing other heroes on Orc outside of just BM every single game, I see humans playing at least 2 heroes (AM and MK).
I do not think that balancing it in a way of enabling more strategies is bad per se, however… It is bad when everything is taken to a 1/1 level cause it becomes a rock paper scissors type of deal after that…
Play 6.7X - 6.8X in Dota and then play 7.00+ patches, you will absolutely have way more fun in 6.XX versions than in 7.00 ones.
I honestly have no trust in pro players in not putting their bias in too, most of them will want the race that they cannot use nerfed.
I think 1.30.3 needs to come out then the community decides if KOTG is still too strong, after that in addition to (if needed) some more tweaks to it, there should be buffs for a hero that is incompatible with KOTG so that Elves can choose to pick either KOTG or said hero first rather than rush KOTG. Remember that before it was just boring DM vs BM matches.
tl;dr: Game designers should be the primary source of balance for the game, and they should take a LOT of input from progamers before they decide to nerf something from complaints, and/or enable other strategies instead of outright nerfing it.
When progamers/a few loud voices become the source of balancing for the game then the game is left as a lifeless corpse.