Since, as the article explains, an outside observer would never see things falling towards the black hole actually reach the 'black' part - they'd just get slow

Since, as the article explains, an outside observer would never see things falling towards the black hole actually reach the 'black' part - they'd just get slower and redder as they get close. So - wouldn't a black hole appear entirely surrounded by all the things that ever 'fell into it', still there outside it? I've never seen an 'artist's impression' of one that looks like that..a big ball of dust, rocks, ice etc. (Imagine if garbage bins looked like that..)