I think the issue here is that they’re so easy that it completely negates their value as a mega huge boss fight altogether. So yeah like, I think in ways you’re both right – I def am voting first they make them harder fights with way more HP so it can get back to potentially being challenging to beat them in time, but the drop tables have to be increased to match, like the weekly drop per world boss should have a 2% chance to drop an uber just like a Duriel / Andariel run.
But if they’re going to leave them as is, where they die in less than 10 secs, then they need to remove the 3 hour window and have them spawn every 30 mins like legion events because there’s no reason to put such tiny powerless enemies on such a high pedestal. (I obviously don’t think this is the right answer, but it’s the natural conclusion of how they currently feel in-game).