I wouldn't give up on them just yet. Get a soil test, amend your soil in the early spring accordingly and give them plenty of water the next two springs. From your description your organic material in your soil is probably going to turn out to be less than 5% and you want to get it up towards 15%. The PH will probably be wrong too. Given the relatively small footprint of hops plants it should be easy to add enough compost and manure and mineral amendments to be successful. They actually like well drained soil as long as there is enough organic material.
Also, while cutting away all but 3 or 4 bines in mature plants is best for hop cone production IMO you would be best off this coming spring to allow everything to grow so that there is a lot of leaf area to promote photosynthesis which will in turn feed the microbiome of your hop yard and promote healthy roots.
Make sure to mulch liberally with compost, composted manure, or composted wood chips. Don't mulch with fresh woodchips! They will use up tons of nitrogen to break down.
I also recommend treating your hops yard as one organism, which is how it works. While you want to get lots of organic material and the right minerals directly on your crowns its also good to improve the overall area over the years. Spread manure, grow cover crops, and amend/adjust ph and you will create a little ecosystem that will then take care of itself, retaining water and creating its own organic materials from all the worms, bacteria, yearly decomposition of cover crops etc. You can grow a few crops of fast growing covers like buckwheat, vetch, and field peas the first year to quickly develop the soil then do a long term cover of clover.
This may sound like a lot of work but its actually only a day or so of work tops the first year and maybe a couple hours of upkeep each spring.
P.S., welcome back to homebrewing and the forum, I had some time off myself.