I offer no expertise like the others in here, but I don't know that I'd rest easily at night with the patch work.
I am interested in the timeline. It's typical that gunite shells will sit for some period of time before they get plaster. At minimum it needs to cure for 30 days by most standards, but most pools just take longer due to coping, tile work, electrical and just industry delays. You said gunite was done in 2017 and then plaster in Spring 2018. If it was late 2017, I'm not sure it's that big of a deal.
The not watering the gunite the days following the gunite was a miss. You said you can't remember if you did it. I'm inclined to say that you didn't though. That's an exciting time, sitting out there for 20-30 minutes hosing things down. I just think that's the type of thing you'd remember. In my case, my PB had one of his guys come by daily and water it, I added an additional daily water to it on top of that. Watering for 1 week (and even more) is best practice as it slows the curing and strengthens it, but I'd have to imagine if it was missed, the pool integrity should still be good unless there was another underlying problem. I could be wrong.