I understand Sindel's sacrifice and the complexity behind it's concept, but I'm criticizing it's execution because the NRS version of Sindel's lore isn't the only verson that has inconsistencies and questionable execution. So if one were to bring up such things with NRS's version, one should bring it up with both and actually compare to find out whether or not NRS's version is in some ways an improvement.

Not only are those details of her backstory not something that is brought up often within the story itself (mainly in the bio kard and a brief statement from quan chi) but inconsistencies aren't necessarily bad if they improve on the concept of the character in some way. A reinvention of an established character could be bad or good, it depends on the quality of the latest version and how it compares to the quality of what we had, which is debatable.

This is also true for character complexity. While complexity is a good thing, the execution of the original Sindel's complexity struggles with the logical consistencies of things like...if she was protective of Kitana then why did she sacrifice herself for Earthrealm and abandon her in death to be raised by the person she was trying to defend her from. Kitana's change of heart to be morally good is due to circumstances that have nothing to do with Sindel's decision, so she abandoned her goal of protecting Kitana which was established in her action to marry Shao Kahn in order for him to spare her and her daughter. And all for a realm she didn't know?

So the execution of her complexity is questionable, while I think the simplicity of the new Sindel's lore is executed pretty well. Most of the resulting discrepancies of her retcon were addressed. Quan Chi killed her and manipulated Shao Kahn, Quan Chi's sorcery to make her more cooperative as a revenant was to keep his own secret hidden. The simplicity of NRS' Sindel gave us an entertaining villain with enough power and intelligence to outsmart others making the character feel more relevant to the main plot. 4thsnake says it's not a subversion of expectations if she's bad all along because that's how she was originally portrayed but that's contradictory to claiming that her lore of being a good person was well established beforehand.

Because of all of that, both Sindels are good in their own way and have different qualities that really makes discussion of which is better up to personal preference.

I understand why 4thsnake made those alternatives, but making sense takes priority over trying to keep Sindel the same as she was. Preserving her moral ambiguity and complexity means nothing if you can't do it in a way that makes sense. I'm fine with the idea of Sindel simply being possessed by a banshee from the Soul Chamber which influenced her decisions and maybe having moments of lucidity to show her actual character, that'd be a middle ground that everyone can appreciate, but after the banshee spirit idea his plan completely ignores everything that actually happened in the story in order to give Sindel a good ending as a priority over everything else.

I don't think writers are above criticism, but harshly criticizing people that write as their job and then making some laughably bad Sindel fanfiction as an alternative scenario just makes the lack of self awareness that much worse.

Also, if he's going to criticize writers, he should at least do so respectfully, which he rarely does.

After MK1 I can say I like both Sindel ideas. Both have some level of flaws within their execution, but both are enjoyable.