Death's Dance is not OP on ADCs - here's why:

I would like to make this post to provide insight into deaths dance on ADCs and its current level of viability, as I believe it is the latest and most unnecessary case of an item being perceived as OP on ADCs when statistics and reasoning shows it isn't. I decided to write this after playing with an ADC (Xayah) who rushed Death's Dance, and proceeded to deal 16k damage in a 41 minute game - only 4k more than her support - and forcing the rest of the team to make up for her lack of damage to win.

If checking statistics on items (lolking), one will see that the current popularity for Death's Dance for the BOT role is currently at 1% for ranked queues and has been steadily declining. This is even less than its popularity for the TOP role by a very slight margin. This is on the NA server. On the KR server, the item's popularity rate for the BOT role is currently at a very underwhelming 0.1%. Now, looking at normal queues, the popularity is up to 2% for NA and 0.2% for KR, which leads me to believe that the item is built for fun or experimenting (which clearly didn't translate into ranked use).

The majority of the usage, I believe, is for the champion Draven. As shown by the statistics, in bot lane Death's dance most commonly purchased before 25 minutes, and Draven is very popular with Death's Dance as a first item.

No other ADC has Death's Dance as part of their core build, as their kits don't naturally synergize with the item. And additionally, they don't have the same brawly, all-in sort of playstyle that Draven has, or a natural tendency to snowball, so they do not make as much use out of it.

So, for ADCs, I believe Death's Dance is simply an inferior item, much less overpowered. An item like Mercurial Scimitar is just so much better because, contrary to what many believe, ADCs are squishy and being able to get out of CC, and therefore not take lethal damage, will work much more often than trying to out sustain damage. And even Scimitar isn't really considered a core item, more a 4-5th item ignoring boots.