The PHP blog touts more often the examples of bad code and anti-patterns. Well, someone else is criticizing the Hindus for the code ...
The code quality is something that should not be ignored or put aside for later. Such a delay is technical debt or code debt that will backfire for sure. You have to spend more time creating quality code and application architecture.
It is highly recommend to read Uncle Bob's principles of SOLID: butunclebob.com/ArticleS.UncleBob.PrinciplesOfOod.
This text can greatly improve your ability to build scalable systems, particularly the principle of SRP.