Personally i think her main problem is a way too similiar concept to Vassili.
Like Vassili she requires to to constantly have her SNITCH deployed, but the SNITCH is worse spot device than HBS because it requires direct vision so you have to pick positions so it would spot targets in your blind zones but remain unnoticed.
And yet the debuff kinda notifies enemy that snitch is nearby and they totally didn’t get spotted by HBS behind the wall.
All of this make SNITCH far easier to lose. Once that happens you turn into just a sniper with worse HP, worse secondary and no spotting.
Although her SNITCH debuff is awesome at buffing weapons in current balance which is the main argument to take her over Vas and RE, but those are simply more reliable and tactically usefull.
What could be done here is to move towards throw&forget trap concept:
-Make SNITCH constant;
-Increace amount of SNITCHes to 2;
-Increace amount of SNITCHes deployed at same time to 2;
-Reduce SNITCH spot radius;
-Reduce throw range;
-Increace CD to 20 sec;
This would move her from spotting towards making SNITCH traps and create a better tactical utility of it: creating traps in different parts of map at same time and secure small choke points instead of big area.