I’ve got an even simpler explanation: maybe you just don’t know how to use them. Instead of complaining about the manufacturer, maybe try learning how the gear actually works?
Victron is very DIY-friendly as a company, but they also repeatedly point out that installing this equipment requires specialist knowledge and often specialist tools. If that’s beyond your comfort zone, the radical idea would be to let someone who does this for a living handle it.
And before this turns into yet another “my solution is better than yours” debate: in my professional career I’ve seen dozens of installations fail electrically for one very boring reason — screw terminals that were never serviced or re-tightened. Spring terminals don’t suffer from that problem. That’s not an opinion, that’s just reality.