The fact that there's an issue at all, that someone has raised concerns, means that it's not clear to your colleagues. If this is whom the intended audience is for, then you should change it for that reason alone (i.e. if your audience can't read it easily, then it's not easily read- period, even if all of perlmonks finds it easy).

All other opinions are subjective (as to why it's readable or not), but the way I decide what's readable is if someone can formulate a succinct sentence on what a line of code means, from left to right, without having to refer to a reference manual.