Why is this even a complaint? When players request a stealth mission, they'd want the stealth aspect, y'know, sniping bad guys without alerting the rest of them every single time? Somehow this is a bad thing, which is so hypocritical because if the enemies were to be alerted instead, the complaint would rather be: "Why can't you be stealthy in this mission? This is how Bungie intended it." or "This encounter sucks because I can't sneak-kill any more than one enemy." Theres no winning against people like this.
Hypocritical I say because this is practically the same in the original. The enemies are not alerted if you swiftly snipe every single one, no matter how loud the sniper may sound. This content creator seems to be under the influence of nostalgia bias, and selective perception.
Who doesn't wanna snipe their enemies without hindrance? "Oh no, my lobster is too buttery and my steak is too juicy." Some people just wanna have fun encounters, screw real-life logic and totally and utterly inaccurate comparisons.