Retro-justification is not some flaw it is most common way people choose tech stacks.

The only logic that matters most of time is business logic of solution serving problem statement and not logic of choosing a technical stack.

Post hoc rationalization

The choice we made for other reasons is the best one for these constructed reasons that didn't exist until later.

https://en.wikipedia.org/wiki/Choice-supportive_bias

Measuring and Mitigating Post-hoc Rationalization in Reverse Chain-of-Thought Generation https://arxiv.org/abs/2602.14469