Low quality script, novice director, letting the project get to this point in this kinda shape?How are they treating the IP? There isn't any proof of anything here. It's a nothing burger.
Granted, films with this pre-pro history can turn out great, remember that Viggo Mortensen replaced Townsend like the day before shooting in LOTR, but in general this suggests diffuse issues with production. Disney has a lot of recent films with extensive shooting issues (John Carter, Solo, Rogue One) so to see it spilling over to the MCU is disconcerting to say the least. Blade is a bit of a known quantity compared to a lot of their other IP so I can understand folks disappointment.