Sure but you’re gonna wear out engines faster...not to mention use more fuel. Its better to run an engine that can pull at a low RPM. Those higher RPMs are useless for anything other than drag racing.
You wanna see impressive towing specs? Look up a two cylinder diesel John Deere...aka “big wheel”...aka johnny popper...aka model 730.
The 400M’s torque peak was at a higher RPM than the 300’s.
Again, why did Ford even bother?
I’d also point out that your exact criticism was raised when Ford dumped the old 5.0/302 Windsor motor in favor of the 4.6L SOHC V8. The torque peak came at a higher RPM and people claimed that it would wear out faster and use more fuel than the engine it replaced, as well as the competition. In reality, it didn’t - it used less fuel and put the 302 to shame in terms of longevity.