Rengar's Q

Hello, I am a former Rengar main with a little over 420k mastery points on him as well as level 7. Before he got reworked I played him all the time, he was my most played champion for the majority of the time I played. I played him mostly top and jungle as well. But after the rework, I just can't bring myself to play him, he is nothing like what he was before. Before he was an epic assassin, and now he is just a weird bruiser champion kinda and I feel like he doesn't have a specific role really. The main problem I have with him is his new Q. It is so slugish and weird and just doesn't fit at all. It just doesn't feel good. They tried to balance his Q out, but I feel like it really defeats the purpose of he gets 100% crit chance on his new Q. So my question is why couldn't they do all the changes they did. but just keep the old Q mechanic, maybe change some of the damages again, make it less powerful I guess, but it would still be much better than what riot has decided to pass as Rengar's 'Q'.

TL;DR: Keep all of the new Rengar changes, but keep his old Q mechanic but reduce some of the damage I guess.