I looked into this again and the hotkey situation seems more unclear than I suggested. You could not log into your Battle.net account, so it would have been somewhat time consuming to change all of your settings manually. If I had to guess, I might wager that Serral changed some of the more important ones manually but not the others, but this is just conjecture and maybe he changed all of them. I don't know if anyone but Serral would know this, however.
In any case, Serral said this, which you can take as you will:
"It was okay, I doubt i would lose too many games with a proper setup. I think the 6.3-6.4 mmr is pretty accurate, so not bad at all but nothing special at the same time."
On the one hand, surely it doesn't seem surprising that the player who lost, the human, would say the above, and so one may be skeptical of how unbiased Serral's assessment is. On the other hand, I would say that Serral is among the more frank and level-headed players I've seen in the various videogames I've followed, so I wouldn't be too hasty to write off his assessment for this reason.
In any case, Serral said this, which you can take as you will:
https://twitter.com/ENCE_Serral/status/1192023800961019904
"It was okay, I doubt i would lose too many games with a proper setup. I think the 6.3-6.4 mmr is pretty accurate, so not bad at all but nothing special at the same time."
On the one hand, surely it doesn't seem surprising that the player who lost, the human, would say the above, and so one may be skeptical of how unbiased Serral's assessment is. On the other hand, I would say that Serral is among the more frank and level-headed players I've seen in the various videogames I've followed, so I wouldn't be too hasty to write off his assessment for this reason.