Hey you know all those massive moments we gave you from "Out of Time"? Cisco’s discovery of Harrison Wells’ secret? Wells’ subsequent murder of Cisco? Iris confessing her feelings for Barry? Barry revealing his Flash identity to Iris? All gone in like the first 5 minutes and here's a much more inferior storyline as replacement. I mean I knew everything was gonna get undone but instead of coming up with variations to those events, they just erased them entirely. The time travel logic in this episode is really stupid. When Barry traveled back in time one day, shouldn't there be another Barry there? Or did he just vanished when future Barry got there? How exactly were The Weather Wizard and Captain Cold involvement on that day connected to each other?
And then there's Barry/Iris, it has really crossed the line into full on romantic plot tumor now and I've reached the end of my patience with this waste of time storyline. Is it really too much to ask that a superhero series doesn't do the same stereotypical romantic plots that we've seen a billion times already (love triangles, don't know if I should tell her the truth about my superpowers, she likes my alter ego better etc.)? Can't we just have a normal progression of two people spending time together and falling in love, then dealing with having a mature and stable relationship with all the superhero stuff going on? No?
The episode and retroactively the previous episode too are just lazy storytelling. They take this daring game changing moments for their series but they have this safety net with time travel so they can erased them quickly enough. Most of it didn't really matter and we're back to status quo.