Earlier quoted context omitted.
Actually this one might make sense, depending on the code and the position you applied for.
Your IDE can check your syntax. For people who have to switch between languages regularly, precise syntax memorization is difficult and a waste of time.
That doesn't mean you can't debug. You can step through the code step by step in the debugger, or add more and more logging around the bug, until you figure out which expression has a meaning unintended by its author. But that means that, if we're working in a language someone knows well, you're likely to spend hours debugging a problem that they can just see immediately when they're reviewing a merge request. That's an orders-of-magnitude difference in productivity when it's important for code to be correct, precisely due to what you call "precise syntax memorization".
Most of programming isn't writing code. It's reading code.
It's possible to go overboard with this. There are other skills that are more important than being able to look at some code and immediately see what it means. There are excellent programmers with severe dyslexia who will just never be able to do this. But it's foolish to think that gaining this skill is "a waste of time" for those who can.
There are languages I've used where I don't know the syntax that well. PHP, Ruby, x86 assembly, OCaml. There are languages where I know the common syntax well, but there are plenty of obscure corners of the syntax that I don't: C++, Perl, bash. But I regularly switch between C, Python, and JS, and I'm pretty confident that I know their syntax, as well as numerous other languages like Tcl, Lua, Prolog, PostScript, and arguably Scheme and Elisp, which I don't use regularly but still wouldn't have any trouble spotting syntax errors.