I think they should be changing up writers and directors for Justice League. Snyder has just not been able to do a good job of portraying these characters and stories as did both Nolan and Burton. A fresh start may be positive. If Suicide Squad tanks, then we may have another problem within DC altogether, just not a one franchise problem. Instead of trying to follow Marvel, they should be setting their own path. It's interesting that DC's animated division is doing a lot better financially and reception wise than their live action film division.
Let's not forget their TV shows. They are pretty good as well.
I like Flash & Super Girl, not a fan of Gotham, legends of Tomorrow and Arrow. Used to like Arrow, but it has changed and lost its appeal. I find Legends similar to Agents of Shield and both suffer from bad writing and bad plots.