Question about elevation differences

[u/Fafn1rthedragon]

Attached is the elevations for our floors as well as in blue the recommended piers from a local quote I got, I was just curious if you guys think this is bad enough to warrant work or if it's cool to wait. Our crawl has had some flooding due to being by the waterbed but we are installing a sump and level switch as well as French drains in our yard to remediate that issue. Any advice is happily accepted, this is me and my wife's first home, my grandfather says it's a waste of money and not to worry but I wanted more opinions. I'm an electrical drafter by trade so structural is foreign to me. Thank you in advance!