Here's a thought. Issac Clark is an engineer, yes, but consider how most of the technology works in Dead Space. It almost always involves something the size of a dump truck moving at high speed while shooting lasers.
Great example? The gravity centrifuge.
Before you plug it in. The plugs on the generator widget are spinning so fast that moving them in causes the unit, which is bigger than an industrial air conditioner, to shoot backwards at high velocity.
Any zero-gee area usually has some piece of detritus that could crush someone by sheer mass.
Apparently ordinary doors can malfunction so badly that they easily chop people in half.
Pressure doors on the sprawl have a button that has to be
shot to close them?
I bet that when the CEC coffee maker malfunctions, it sprays 500 plasma that melts through bulkheads. Getting your finger caught in a 3 ring binder will probably take it right off.
Point being, you obviously need an iron nerve and cat like reflexes to work with industrial technology in the future. In fact, all their Marker experiments are probably just by product of the generally lackadaisical approach to workplace safety. So the egregious violations of common sense neatly excuse Issac's improbable survival skills.
