You cant just take zoneline PVP as basis for your analysis.
What about the lone sniper for example, is he supposed to walk around in plane sight while looking for prey?
The spy needs stealth because he has low resists and for now nanites suck and psi shields are kinda useless.
How do you plan to compensate for that?
If you only allow 10 sec stealth then you can remove it altogether.
How did people deal with stealthers all these years and why is this suddenly such an issue?