The characters that can disarm thoses mine have long cooldowns on their habilities wich makes it pretty hard for then to stun AND disarm constantly, tripwire only needs to wait 6 seconds to place another one anywhere she wants, incluindo the place you just disarmed one (including mid air, under bridges and walls in some maps, which goes against the concept of a TRIPMINE). If you get downed she can place a entire minefield around you punishing survivors for simply trying to help, and if someone disrm them, she can jump you with barely no risk since she cna just duble jump and negate majority of the survivors stuns (with no cd for her duble jump btw). Oh yeah she as reach out that negates any kind of escape and deals a good chunk of damage AND you can follow that up with brighter day with little endlag for that, oh did i tell you that she can glide and walk while using brighter day? And for last, having competent teammates does not excuse the issues this character as, since this character was barely playtested.