Years ago I worked with someone who owned an Oldsmobile Bravada. Her fuel pump fried 3 times in one year and her husband was so sick and tired of dropping the fuel tank he cut a hole in the floor just like this guy.
Yeah fuel pumps were very common issue for GM's in the 90's and early 00's. I put 5 fuel pumps in my 97 s10 in 2 years. Just like gonefishin said I dropped the tank the first time and it took a few hours. 2nd time I took the bed off. 3rd,4th,5th times I was so good at taking the bed off I could do the entire job from start/finish with just the help of one person to lift the bed I could do it all in under an hour.
They FINALLY came out with a new harness to fix the issue, and after that 5th pump it's still going strong (now belongs to my boss's son).
We had a 97(IIRC) malibu as well and I think we put 3 pumps in it in a year or so. I hated dropping that tank.
Most vehicles now have access panels built in the floor board for the fuel pump since fuel filter's are typically not serviceable anymore.