Clarification: In my previous comment I meant that the implementation was antiquated, which is why it was causing many problems.
Although I do think that desktop icons in general are outdated because they’re designed around a desktop metaphor that is itself outdated. Our use of computers has changed vastly over time and the original metaphors are irrelevant to today’s newcomers. Yet most desktop environments are still replicating the same 30 year old ideas. It’s because we’re used to them (which I understand is a valid reason), not because they are necessarily the most pleasant or the most efficient.