Yes and no. Tucker and co. are at the mercy of the WBHE executives dictating/leading the conversation on what movies they greenlight and/or want them to do next and it doesn't sound like timeline-wise they come up with a long term plan of do this in 2018, do this in 2019, do this in 2020 but a little more ad hoc so that affects Tucker and co.'s ability to really thoroughly map out what stories they tell vs. want to. And in addition, they're limited to 2 movies (we've been lucky the past 2 years had 3 each) rather than being able to do 26 episodes a year. Still they've been able to seed and plant things here and there that later movies pick up on. I'd have to double check but I'm fairly sure even the notion of this ongoing movie canon was dictated by the executives as well and not by Tucker and co.1.) Everything seems a little rushed. By all accounts, the Justice League's initial battle with Darkseid could have been a complete movie all on it's own, allowing it more breathing room. It would appear that this initial battle will be little more than a prologue in this film. This has been the major issue with this continuity for me in general. They jump around from concept to concept, cutting story/character potential to move on to the next ''event'' or idea. It means I never really cared for these iterations of the characters or the outcomes they face.
The one gripe I have so far is them touting this as the 'final battle at last' with Darkseid. Like after JL: War, he was a non-issue for 4 or 5 years then suddenly pops back up in the Death/Return two parter. It's not like there were any hints between 2014 and 2018 that he was plotting/manipulating between the scenes for his reveal in Reign to be a shocker, imo. We just had the Boom Tube in Death of. Not like they were fighting Apokoliptians ever since War. And basically after the 2nd attempted incursion on Earth in Reign, the JL is ready to put him down. I get why. He's Darkseid. Idk. Feels really hasty of the JL... and I guess they pay for it from what we've seen in the trailer and first look. Like in comparison, he appeared like 7 times before Superman tried to put him down in "Legacy" Part 2. Shrug. Again, just a gripe. Hopefully, it'll make sense for me when I watch the actual movie.
Well, that's more a general issue with all super hero movies, live or animated.2.) Any death in this movie will have little repurcussions or any real meaning. So why are we meant to care? Constantine or Flash will simply do a little rejigging and everything will be reset. New designs, same voice actors, once more around the merry go round?