The business banking portal is often much worse than the consumer one.
Nowhere in the article (which I read in its entirety) does it answer the above reply's question. "Do companies consider good UI a competitive advantage when looking for a commercial bank or lender?" I don't know. But that's not addressed in the article.
My guess is that it probably isn't a huge consideration. Very few people interact with these interfaces. Maybe one or two controllers at a company would ever log into this. Even CEOs and top management would never actually log into these accounts directly. They are going to get their information from internal reports and BI dashboards. So I bet no one really cares. If Citi offers a $400M loan at 1.1% interest and JP Morgan offers the same loan at 1.3% interest, my guess is that that company is going with Citi. I doubt UI/UX makes a difference here. Although in the consumer world it does have an impact which is why we have seen many banks improving their apps and websites lately to compete in the consumer banking space.
Ive gone so far as to open 4 accounts with different banks to do actual tests
The biggest issue i found is that no bank offers a "free trial" of its own to facilitate discovery.
I have filled at least a dozen firms twice becuase the bank wants "wet ink" signatures
I had to overlook those instances just so i could test the UI, but honestly, its an exercise in supreme patience and i am afraid my whole effort will be pointless. I suspect all 5 banks will be equally bad.