-1 NO
It doesn't take 50 hours worth of credits to buy Dlore, anyone has access to it, and plenty of people will sell the unbox version for cheap and have a surplus of.
Anyone can buy enough perks (200hp+100armor) to not get 1 shot, it isn't 40k for two health perks, and even if it was that isn't that expensive.
If it WAS nerfed, then people would just use the next-best sniper (m95 Dragon) which is arguably just as good at base defense, even with a longer reload speed.
People have already invested into it, (many players bought it with in-game money for credits that's ALOT of farming!)
Would ultimately piss more people off then it would appease.
Has been suggested before many times, and has never been seriously considered that I know of.
People are afraid to raid because of it, (Ever heard of dance crouching to bait peek? Smoke grenades? Any tactic besides walking up to a keypad with a cracker?)
Mad cuz bad I suppose.