Not at all, PDZ does have cumbersome design issues, I mean I could list control alterations that would be more logical right now, however, the amount of strategy in a game with so many people is still boggling, especially compared to the likes of halo.
Things that make pdz stand out.
Weapon balance, really, there is nothing better out there, the only heel in this is the super dragon which can be disabled, but the rest of the weapons, for every power they have, is a counteractive measure.
Radar system, the aspect of only showing up on radar while firing is really great, and gives greater purpose to take the damage hit while using the more accurate silencers.
Options, in what other games can you make enemies see their friends as an enemy, causing hilarious friendly fire incidents, set up laptop turrets, hack other laptop turrets, blind radar systems with a sniper, hack into mines causing self explosions, ricochet bullets off walls to kill campers, turn invisible at will, control remote control rockets, steal weapons, make yourself come off as a friendly on radar using the shotgun.. I could go on and on, pdz has such a vast amount of tricks you have to factor, all while being FAIR. The weapons also feel amazingly well done, every shot feels good, the reloading animations are spectacular, the shotgun in pdz is one of the most satisfying weapons of all time.
Aside from that, PDZ also uses a better health/armor system then pretty much anything, I like knowing that a person I just shot up will not have full health when I encounter them again. Also, the crosshair system was very nice, a person who plays with patience will get kills in a couple seconds, a person who spazzes and sprays will always lose, the finess and skill required to get a kill is very satisfying, and I always smile when I see noobs bitch about it taking 100 bullets to kill someone, they are the types I run into a room and get 8 kills before dying.
Also, the mixture of death match and dark ops, brilliant.
There is just so much to use in pdz, and the strategic aspects are very deep, so deep that it's worth it to dig through it's issues. yes the cover mechanic is clunky, some functions could simply have been mapped to one button (why can't R stick click be punch while B is tertiary fire or something), and the movement feels a bit sluggish, however, when all is considered, i'd rather play PDZ today then halo, gears, graw, rainbow six, modern warfare, etc.
did I mention that pdz still has the best netcode of any shooter ever created? The fact I have NEVER experienced lag outside of a little slowdown which is rare, is insane. I can't play a game of halo, gears or modern warfare without some kind of lag being noticable, but pdz is still to this day untouched on 360 in netcode.
All of that, and its still considered shit by some, I just assume those people are horrible players.