You do not need to own a unit to see something is wrong with it.
Nobody needed OKW to find out that the JLI were OP after they buffed them beginning of 2019. It's more difficult, but 100% doable, even if you want to deny it.
I am not denying it.
But having some very obvious OP units that really should not be performing the way they are is not the same as some maybe more subtle balance details.
I would much rather have assault IS nerfed because those are really powerful in my experience on some maps. They have insane dps even with no upgrade.
That dps is very noticeable when you play them and against them.
I don't find that to be the case with IS in every situation.
And also I don't disagree that IS are over performing at the moment. But the way he puts it it feels like they are unbeatable.
He was predicting that they are going to blob IS and win the whole Cup. Then it didn't happen the way he thought it would happen. So he started with 'grens are useless' and people used grens too. Then IS did not win the cup in the end and he continues to talk about how they are a win all unit which they most certainly are not.
Ofc you can spot a balance issue while not playing a unit. But in a game where tactics and approaches play a large role there can be bias to his conclusions. This is only logical. Don't need knowledge of the game to know that you can't purely balance only by playing against them and probably most games are from OST perspective anyway.
But in the end I trust the balance team and every mistake that they make they will try to fix it as best as they can. They are not trying to kill his beloved faction (I hope).
And in the end I am looking at the ladders top 10 and Asha has a +49 streak with OST. You mean to tell me he never faced UKF once and that is the reason he has a big streak? Ofc not everyone is as hood as top10 but I am just pointing out that sometimes it may be the player that is the issue and only playing against a unit is not a good way to spot issues in the balance.