That’s not another “nerf reverse” thread, it takes a bit of time getting used to it but after a few games playing against someone with reverse, it is not too difficult to survive it.
But the most deadly part is when it silently switches back to normal. No sound or visual effect, you just have to either watch the little loading bar very closely, or learn the timing.
Sure that’s doable but I feel like this just adds an unnecessary difficulty. And it’s kinda off-topic, like, the main point should be “can you play with reversed keys?”, not “can you memorize some arbitrary time interval”. A little “ding” when the direction goes back to normal would make it much less frustrating.