Nice use of deception there... more were killed on the Titanic, but I guess crew does not count.
Eastland - 844 passengers died (no mention of crew?)
Lusitania - 785 passengers (no mention of crew?)
Titanic - 829 passengers (plus 694 crewmembers)
IOWs, government regulations of putting X number of lifeboats on top didn't help in this instance, making the boat more top heavy.
From the article, the 'black gang' as stokers were once referred to (from coal dust and lubricants and sweat) realized what was happening and left the engineering spaces, which likely saved many. Then, too, a short trip steamer would not require the crew an ocean going vessel would, either to run the ship or to cater to the passengers 24/7 for a week or more.
The takeaway for me ( and I recall people having to wear hearing protection because the back-up alarms on mining equipment were too loud to be around without it--OSHA stuff) is that mandating safety equipment on a one size fits all basis contributed to the disaster by treating a lake steamer like an ocean going vessel of deeper draught and different construction. Not that the Eastland was a particularly well-designed vessel.
(Which, ultimately, is one of the reasons I am strongly in favor of fewer Federal edicts and more localized control. One size does not fit all.)