Early in the life of any engine those looooong OCIs (oil change intervals) will probably not cause any issues because the engine is new. But once metal has been worn away there are no snake oils or magical mystery compounds that'll put it back.
The price of a synthetic oil change at my dealer is around $70, including filter. If I change my oil every 5000 miles for 200,000 miles I will have changed it 40 times for a total price of $2800.
If I extend it to 7500 miles I will change it about 27 times for about $1890, saving $910.
Extending it to 10,000 miles I will change it 20 times for $1400, saving $1400 or $490.
If you want to save $1400 then by all means use 10,000-mile OCIs. But how much will the engine or car replacement cost if it fails at 100,000? Will it fail when you are ready to fix it or junk it, or will it fail at an inopportune time?
I let the OLM alert me but I don't go to 0% (except once while on vacation and driving 2000 miles in one week) and change it around 5000 miles using full synthetic.
Lots of opinions, not a lot of information running around. If you go to BobIsTheOilGuy.com you can read up on just what happens to oil in the car and all it has to do besides just lubricate. Knowledge is power, so read on and choose well.