@Meddler : are Juggernaut items getting abused recently?

So in the Follow-Up Juggernaut item thread ( http://boards.na.leagueoflegends.com/en/c/developer-corner/fWOVQoin-followup-juggernaut-items ), it was said that Juggernaut items were rather successful, that stat binding had worked, and that it was great. And at the time, I was of the same opinion.

But recently, we have seen a lot of Assassins/Light Fighters using builds with much more durability than usual, and having great success with it. Fiora, Yi, Akali are the biggest offenders. There has been some comparisons between old Atma and new Titanic.

So, was the assessment made in the Follow-Up thread just too early? Or what did happen to change the situation? Do you think it's a problem, or do you think they are interesting and healthy alternative builds? (Spoilers: I don't think so, imho.)

Or maybe it's not related to Jugg items at all? There is also Elise built as a Tank support, just like Ekko and Fizz had their period during the last season when they were built as Tank junglers. Are Tank builds on squishy champions bound to happen once every while?

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(EDIT: I created this thread because I tried to have this discussion during the 6.4 Patch Discussion but didn't manage to get any answer, and bevause this other thread kinda touched the same issue: http://boards.na.leagueoflegends.com/en/c/gameplay-balance/UEWjn3NO-season-6-metagolem-and-you This other thread is also quite interesting if a bit wordy: http://boards.na.leagueoflegends.com/en/c/gameplay-balance/naqnZw1E-riot-so-tank-fiora-yi-and-akali-are-a-thing-a-quick-question-about-item-design )