Peer review depends on the seriousness of the reviewers. Sometimes they’re too busy to give af, sometimes they’re fucking dumb, sometimes they’re deferential to authority figures who they know to be wrong. Same as everyone else. 90% of the scientific literature is irreproducible shit.
Nice made up stat. For anyone upvoting this, take a look at this video refuting a similar science denier. It'll give you a real idea of how science works. The video also specifically addresses the so-called "reproducibility crisis".
You’d have to be a fucking moron not to recognize the colloquial use of 90%. I’ve been in the trenches. I’ve published (in Science, is that good enough?) and seen forced retractions due to fraud. A LOT of the literature is shit. I’m not saying science is shit. I’m a scientist, I assert there is no way to understand the world other than through science. I’m saying the majority of the literature is shit.
I'm not really familiar with this journal, but it sounds like they've had low standards for quite a long time now. There are some interesting comments about them under the Ars article, as well.
In May 2015, Frontiers Media removed the entire editorial boards of Frontiers in Medicine and Frontiers in Cardiovascular Medicine after editors complained that Frontiers Media staff were "interfering with editorial decisions and violating core principles of medical publishing". In total 31 editors were removed.