Because mod 8s 13-16 toons were about as geared as today's 18-20 toons. Plus, today's toons at level 13 are still in GH/necro, unlike back then they were running the vale/marketplace raids.
It is near impossible to put an lfm up today (100% pug group) for 15-16 and have 80% of the melees have greensteel, yet back then you could, that's th difference. And the reason for that isnt ftp noobs, the reason is simply becausehe level cap has been raised. Shroud is an end game raid, back then end game was 15-16, today it's 18-20, that is why