Oh, yeah, that’s not enough moisture. I can only imagine how disappointed you must feel about that.You are right to pull that out and rebuild your form.
The challenge with the instructions on the premix bags is that their ratios are conservative. If they told you something like 5 pints to a bag, for example, that’s a good starting point. But from there, you need to assess how the mix looks and splash more liquid in a little at a time, give it a chance to hydrate the mix, and then assess again.
In my opinion, it’s ready for this kind of a pour when everything first packs into one or two large lumps (not little “malted milk balls” but a couple of single clumps), then starts to loosen again. The concrete needs to flow into the form, but can’t be “soupy” because then it will form a weaker bond over its 30 days of curing time.
Get it to the clump stage, add up to a pint more water, and allow it to hydrate in the mixer. If that’s not enough, add a little more until you hear a nice “shoop shoop” sound which means the aggregate is able to move around in the mix. If you see water on the mix after a minute of mixing, there’s too much liquid and you’ll have to add more dry mix to fix it.
I admire your spirit…don’t give up!