There's an ongoing replication crisis in psychology that suggests that most of the findings in the field are fatally flawed [1][2][3].

In light of this, it's not really fair to say that tech cannot be inherently complex because psychology is more complex, and they somehow manage. The psychologists have, empirically, not managed very well.

[1]: https://journals.sagepub.com/doi/full/10.1177/17456916156099...

[2]: https://osf.io/ezcuj/wiki/home/

[3]: https://science.sciencemag.org/content/349/6251/aac4716.full...