Modern vehicles get oil to the upper valve train within half a second upon a cold start up. I have done plenty of lifter jobs on GM v8’s and have plenty of oil at the rockers on a dry start immediately.
This spin on oil filter is just a scare tactic that is clearly working…….
Just double check the injector connector for the terminals being “burned” as well. Have seen the connector at the injector being the main culprit for injectors failing. Will work with a new injector for a bit then take out the new one