Yeah, the first time I opened the hood when I was buying my Focus was a bit of a shock... Not too pretty! But that was 12+ years ago and it all still works! No crumbly wires or made with rodent attractant insulation, all the black plastic seems to not get brittle, no plastic cracking coolant junctions... No head gasket problems or timing chain issues. Its not pretty but it seems to work well. (knock on wood)
I think that’s where I’ve settled too. The first time I pulled the engine cover off mine to do some work I noted that the wiring was not as neatly or thoroughly dressed as on other makes, but it was well-secured from vibration and to its credit hasn’t been a problem. Securing it from vibrations is huge for longevity.
The worst wiring looms I’ve encountered was a 97 Nissan pathfinder I owned. Yet the one that was damaged through normal use vibration was a Chrysler. Yet a Jeep from the same generation, with the same engine and control modules, had one of the best run and protected wiring harnesses I’ve seen. Dodge seemed to do well also.
That said, even Lexus hides some mess under their engine beauty covers. It’s kinda funny. I’ve been spoiled by a few vehicles in my past that did wiring very well. And were simpler, that’s part of it.