I agree. But in our trials of about 8 varieties side by side for years now, most others look good to great and all the Triple Crown vines at this point look like they got blow torched. It’s a PNW cultivar and does great there, here in our area it does OK for a number of years and then seems to fizzle out. We are in a rural area with lots of wild vines around and thus lots of pest pressure. I’ve learned over the years that growing fruit in the city and growing fruit in a rural area are two very, very different ball games. In most cases it’s surprisingly much easier in the city than in the country due to the urban advantages of: less pest pressure, warmer micro climates, less wind velocity, earlier spring warmups, less late frosts, better drainage in most yards, less animals, etc. I’m not sure where you’re located. We’re in rural KY which is a veritable battleground when trying to grow fruit! Years ago I thought it would be the opposite.
Further, cultivars respond drastically different to whatever conditions (climate/soil) they are grown in. You may have very healthy rich soil, etc. but if the cultivar you plant is ill-adapted to your climate than it will be under stress and often be susceptible to insects and disease, no matter how ‘good’ the soil is. Soil health is one basis of plant health (an important one). Yet, heat, cold, sunlight intensity, wind, seasonal length, etc. all affect plants as well, and can make or break them. That’s why cultivar selection is so vital, especially in challenging environs.
Most PNW berry and other fruit cultivars tend to do poorly in the Mid Atlantic for that same reason- more heat, more bugs, colder winters, more summer rains, etc. here, than there. Being in a city buffers those dynamics and effects somewhat.
This dynamic of cultivar variance holds true for any types of cultivated plants. We have excellent soil on our farm and tend it very well (Certified Organic, basically no till, excellent cultural conditions, proper trellising, good airflow, full sun, etc.) For whatever reason TC is less adapted to our region than many others, and seems to fail to thrive here for very long. It does not handle rednecked borers well and they are all over here. I also have trialed other PNW hybrid berries like those mentioned in this thread here and they were all fails for one reason or another. I do not spray any of our berries.
By the way, rednecked borers love healthy plants with large juicy fat canes! Insects and animals are attracted to nutritious, pampered crops. Insects and disease rarely will become infestations or plagues of crops grown in healthy soil, but that doesn’t mean they won’t show up. They like nutrition and flavor as much as we do. For instance, no matter how healthy the soil apples are grown in is, apple trees susceptible to Cedar Apple Rust are going to be covered in it if CAR spores are in your area (yeah, they’re everywhere here).
Many or most modern cultivated selections of fruits lack natural defenses against insects and disease, even when grown in healthy conditions. As of the 20th Century, fruits were usually not selected or bred with inherent resistances as a focus, the majority of fruits being bred only for decent flavor, ship-ability and heavy production while heavily relying on chemical sprays for defense, something the breeders (Universities mostly) assumed most or all growers would be utilizing. The majority of seedling selections done by amateurs or fence row finds are offspring of the same and have many of the same susceptibilities found in the parents. Thankfully Universities are now shifting gears towards a strong focus on breeding resistant plants, and some have for decades now.
What we as fruit growers are growing these days are mostly all very complex hybrids of excessively chemically pampered parentage, and so finding and identifying fruit cultivars with inherent genetic resistance to severe pest and disease pressure is a very important goal all sensible fruit growers should be focusing on, whether you are organic or not. Good soil can help a plant express it’s inherent genetic defense capabilities and capacity towards resistance, but does not magically grant it just because it provides good nutrition, despite what some may claim.