That and those heroes which are being used as villain of the week are being wasted (killed). it's sad to see heroes that can be allies and the fact that they are league members used this way. all barry has to do is have way home for them with jay help since all they want to do is go back home. cause were likely not gonna see them again since their alternates are ether powerless or killed off in Barry's reality/time line . it's odder that Barry killing them be they true villain or other wise and the others of team flash are fine with it. it like season one & two small ville before the retcon in season 5.
they still have the meta human jail cell's til the meta human penitentiary is made and they really need to make that other thing for those that aren't planning to be villains. the plan was to seek them (meta humans ) out . (but to fight every single one of them and kill them? ) what if alot of them are like Ronny/stein and just need help controlling their powers or otherwise?
I think one thing that makes it hard for Barry to just get them back to their own world is that these people are out to kill him and he doesn't seem to have been presented with many alternatives in regard how to take care of them other than which have turned out lethal.
I don't really see that as a big deal, though, just because Barry may or may not have killed those two villains (and Sanddemon was a psycho who had it coming imo) doesn't make him to a less interesting character to me.
I like the JLA but their way of dealing with threats and enemies is redundant in many cases as they just seem to wait for trouble to come back and bite them in their ass again (and kill innocent people as well). I think Barry actually taking care of those who are dangerous and have the intent to hurt others is fine, whether it be in a lethal way or not.
I myself can't imagine Barry wanting to become some sort of Punisher, tho, so I guess they won't get so far with his character, anyway.
I like the Pipeline, I never had a real problem with it because I'm pretty sure it's just temporary and they will certainly come up with a better way to deal with meta humans. I hope Iron Hights is getting some kind of update and can hold metas one day, that would be pretty cool.
For those who are like Ronny and have powers but can't control them I would say it's completely fine to put them somewhere where they can't hurt others while they learn how to deal with these powers- and I think any decent person who is in this position probably doesn't want to mingle with people when there is a possibility that they can hurt or even kill them, anyway.
Much like with Bruce getting back to Gotham n TDKRises. He's Batman, I think he had some resources that would be able to be tapped for emergencies. Barry on the other hand is working off a civil servant's salary. 
