Yep, the larger engines such as the Cummins 6.7 for example eat CP4s for lunch because they've got the fuel pumps turned up to 1.5x their rated capacity in an attempt to keep up with fuel demand. 850+ lb/ft of torque requires a ton of fuel, so they're over-running the pump to try and keep up.
Well...Ford did not overdrive the CP4 on the 6.7L Super Duty, and they are currently producing 1050lb-ft, so I'm not sure that's the answer.
For some reason, RAM had a lot of CP4 failures on 2019 and 2020 Cummins trucks, to the point where after one year they made a revision and after two they reverted back to the CP3. Doing that is clearly an admission of failure in my book. I came from a 2019 RAM 3500 HO with this pump and traded my truck at 17k miles. No failure, but I was always nervous.
Ford and GM both had fairly frequent failures of the CP4 on their 2011-2016 HD trucks. Actually, Ford made changes to the pump for the 2015 model year and indeed the failure rate started to slow down. GM simply changed suppliers from Bosch to Denso. Ford continues unabated with the CP4, and indeed Super Duty outsells all others in the HD truck arena.
I think there is validity to the statement that an EcoDiesel flows a lot less volume of fuel than an HD diesel, and that may well help. However, fuel pressures are very similar to the HD truck diesels, and unlike the big trucks these EcoDiesels only have one fuel filter so there is that to consider. On the upside, you can replace an entire EcoDiesel engine for less money than a Ford, GM, or RAM dealer would charge to replace the fuel system on an HD diesel with a failed CP4 pump. The downside is that's still a lot of money, of course.
Be very careful what additives you run in your fuel. When I was very involved in the Ford 6.7L forums (I owned 4 of them), many common off the shelf additives did more harm then good. Ford Motorcraft PM-22 cetane boost and lubricity additive was considered safe. Most Power Service products were not. I've added some Ford PM22 to my EcoDiesel, just like I did to my Cummins, because they all have the same Bosch CP4 pump and that's really the only thing an additive is going to benefit.