Most languages let you cut corners and code in a sloppy way. This is not limited to PHP.

I think anyone can show anecdotes to support "coding in [language you don't like] is bad".

Replace "unsafe" with "non-performant" and go back to early Rails days and you'll have plenty of examples where naive framework implementation led to programmers shooting themselves in the foot with the "easy way" in a different context..

Like I said, all languages and frameworks have their caveats and learning to code properly is the developer's job, and the "right way" or "best way" is often a work in progress that evolves as the community develops best practices..