On most forums I get into trouble with the mods when I start criticizing untrue responses about replacement tire selections. Basically there is no regulation that says what size or design to use. There is no regulation that allows lowering the vehicle manufacturer's selection of Original Equipment tires. There is no regulation that says you as an owner can lower the safety standards. Unknowingly to some and anti regulatory responses by others are sometimes taken with a grain of salt.
I write a blog about tires but don't often publish it. It's unsponsored and does not violate most forum rules but, I tend to PM it to those that want to read more. I'm currently working on a multi-page research post about this subject. There are 30 - 40 research documents involved and numerous tire industry standards that have to be all tied together to complete a valid and comprehensive post.
The only valid response I have for not recommending the use of replacement tires with less load capacity than the Original Equipment tires is; It's not supported by anyone.
USN - RET - PDRL - Aviation Structural Mechanic (H)
DOD - RET - Journeyman Aircraft Mechanic
SSA - RET