DPM.LOL posting the latest Solo Q performance of each Los Ratones player

According to DPM.LOL, this is the following, recent Solo Q statistic for LR:

• Baus [Top] 133 Games 57% winrate

• Velja [Jungle] 193 Games 60% winrate

• Nemesis [Mid] 94 Games 55.3% winrate

• Crownie [ADC] 167 Games 46.1% winrate

• Rekkles [Support] 101 Games 55.4% winrate

This really reminds me of Drututt's all role challenge where every role was fine, except ADC. And to further underline this kind of pattern, here is DPM.LOL showing the recent Solo Q performance of the EU team KC that has the best ADC in Europe:

Every player is basically at ~60% winrate except the best ADC in Europe - Caliste - with a winrate of exactly 50.0% in his 74 games of Solo Q (Challenger).

These patterns can not be dismissed as a mere coincidence and if you blame "sample size", then I retort that various players from Pro Teams and individual streamers like Drututt all show very similar performances in these various roles across multiple Elos while basically over 100s of games have been played out during S15. Does this not say enough about the current role's strength and that it has fundamental issues which needs comprehensive corrections?