If factory engineers gave a rats arse about what is best then this engine wouldn't have a silencer in the intake, would have a better breathing airbox, a way better lifetime air filter (not cheap paper) that comes stock and a better muffler, all of which make the truck run better and gives you about 2mpg better mileage.
It would have much beefier front brakes like the Tundra and have the same in the rear instead of drum brakes.
It would come with a bug deflector, come with top of the line dual batteries.
Come from factory with nice rock sliders and with a built in Ultra/Scan Gauge in the dash. Come with nice weatherguard mats.
Factory is almost never the best, it is usually the easiest and cheapest that appeals to the lowest common denominator while still being reliable.
Bypass Oil Filters improve the efficiency of the engine, better oil cooling, better filtration, which over the life of the engine should translate to a longer cleaner running engine.
Having said that, for me personally I would not simply "relocate" the oil filter largely because for $14 I can have someone else do it and more importantly dispose of the old oil properly which is the biggest hassle of DIY oil change to me. THAT is the easiest way to change your oil and WAY worth the $14 to me.
I would leave the filter location alone but install a Bypass Filter for way better filtration.
The bypass filter only takes about 10% of the oil from the top of the engine from the oil pressure sending unit and filters it far cleaner than any regular spin on filter ever could. Will filter all the oil about every 5-6 minutes. Adds a solid 1 extra quart of oil to the system.
Would cost around $275 at first, add about $8 to each oil change (1qt extra oil) have to change the Bypass filter every 2 years ($40) so for me that would translate to an extra $56 every 2 years, or $2 a month.
I have been planning to do this to mine for 2 years now but I am just too #!^* lazy to do it.
I was going to go with the Amsoil Bypass and put the return oil on the oil filler cap, that would be like continuously adding fresh oil as you drive.
That BTW should have also been put on every engine from the factory if factory engineers really gave a crap about what is truly best for the engine.