Are you implying that they could just lower the round duration, and all this talk about banning people who rope is unnecessary? But how would we achieve that amazing technology?
In all seriousness though: they can’t just remove some seconds from the timer without further analysis. Some decks like high APM rogues would just break.
Sometimes people are tryharding when they’re not necessarily high MMR. E.g. the top of Diamond is try-hard festival. People play the most netdecky netdeck they can find very careful because 80% of them want to just go Legend and then stop playing entirely for the month.
I’m not very surprised when people just stop at D5 entirely. I do it myself often albeit it’s also because I don’t want to spend more time on video gaming and it already has most of the optimization for F2P at that stage (Arena is probably better F2P optimization after that).