Totally agree.
You can actualy setup a custom duel bot match with 99 rounds with higher difficulty as a work around but it makes everything much slower.you kill the bot,forced to watch the round ending,the begining of the new round..and if you want to switch the bot class you have to recreate the game entirely.Its somewhat fast on my beefy pc but im going to play the release on ps4 and it might be much slower..
In the how to play duel practice mode when you kill the bot he respawn right away wich is perfect to test different combo strings without any time loss.
So basicly they need to add the ability to choose the class you are fighting and to let us choose higher bot difficulty in it and id be really happy.Even better if we could switch bot classes within the same game.