It really seems so - these are my four planeswalker decks, redeemed by codes and slowly upgraded from packs - I used some wildcards, but only two/three a deck. I thought that they are good, because I have 40% win rate (in Bo1 unranked - I don't play anything else now), but probably they are just considered weak by game and matched accordingly
1 Ral, Izzet Viceroy
2 Ral's Dispersal
3 Ral's Staticaster
3 Precision Bolt
1 Niv-Mizzet, Parun
1 Erratic Cyclops
2 Goblin Electromancer
3 Wee Dragonauts
2 Chemister's Insight
2 Direct Current
2 Sonic Assault
1 Firemind's Research
1 Quasiduplicate
4 Crackling Drake
2 Risk Factor
2 Beacon Bolt
1 Electrodominance
1 Quench
4 Izzet Guildgate
10 Mountain
9 Island
1 Vraska, Golgari Queen
2 Vraska's Stoneglare
3 Attendant of Vraska
3 Kraul Raider
1 Beast Whisperer
1 Lotleth Giant
2 Spinal Centipede
2 Ironshell Beetle
1 Swarm Guildmage
3 Dead Weight
3 Prey Upon
1 Vicious Rumors
2 Undercity Uprising
2 Golgari Locket
2 Grappling Sundew
2 Assassin's Trophy
1 Status // Statue
1 Mammoth Spider
1 Undercity Scavenger
4 Golgari Guildgate
1 Guildmages' Forum
8 Swamp
8 Forest
1 Dovin, Grand Arbiter
2 Dovin's Dismissal
2 Dovin's Automaton
2 Elite Arrester
3 Unbreakable Formation
4 Concordia Pegasus
2 Spirit of the Spires
2 Windstorm Drake
2 Azorius Knight-Arbiter
1 Arrester's Zeal
2 Summary Judgment
1 Code of Constraint
1 Sphinx's Insight
1 Azorius Locket
1 Senate Guildmage
3 Lawmage's Binding
2 Bring to Trial
1 Glass of the Guildpact
1 Sphinx of New Prahv
1 Depose // Deploy
1 Plaza of Harmony
4 Azorius Guildgate
8 Island
10 Plains
1 Domri, Chaos Bringer
2 Domri's Nodorog
3 Charging War Boar
3 Ragefire
1 Glass of the Guildpact
1 Sylvan Brushstrider
2 Frenzied Arynx
3 Zhur-Taa Goblin
2 Burn Bright
1 Stony Strength
2 Rhythm of the Wild
1 Mammoth Spider
1 Gruul Locket
1 Gruul Beastmaster
2 Savage Smash
1 Ravager Wurm
2 Sunder Shaman
1 Flames of the Raze-Boar
1 Rampaging Monument
1 Gruul Spellbreaker
1 Titanic Brawl
1 Thrash // Threat
1 Immolation Shaman
1 Stomping Ground
2 Guildmages' Forum
8 Mountain
9 Forest