>>717488684 (OP)
1. The plot is extremely convoluted.
2. In every new game, there is a constant change of rules.
3. Rules can be broken because "muh power of heart".
4. Clones, people stealing names, or whatever. Constant recycling of the same characters because you thought they died but then, oh that wasn't the real one, and similar kind of bullshit.
5. Games scattered between several platforms, requiring you to buy every device possible (weren't Coded and χ only for phones?)
6. Some remasters were only videos because they had the rule of "one game per year" (remasters included) and they didn't have time to remaster everything, so if you were waiting for 358/2 Days, you can fuck yourself.
These are a few reason that came in mind on the fly. I bet there are many more.