Agree you are less likely but not immune with Mobil 1. It is good oil overall.
I know of one Subaru that developed a nasty oil burning habit on nothing but Mobil 1 Extended Performance at short intervals from new. There are other scattered reports here and there too.
Not immune? What I am 100% immune to is sludge anxiety. Mobil 1 certainly cures that, or at least gives a good strong placebo effect.
So here are some facts....I've, by far, mostly used Mobil 1 products over the years, with a few deviations with other oils I consider to be very good. I've never worn an engine out. So even if it was dirty, it simply did not matter. I've never parted ways with an engine running less than perfectly. And every time I've popped off a valve cover, the engines were spotless. This is going back over 40 years, with mostly Mobil 1 oils wit at least some PAO in the base.
As for pistons, I don't really care as long as they don't have carbon deposits. It's a combustion chamber where gas burns. It ain't going to be factory new in there, no matter what Valvoline or anyone else tells you. Once an engine is fired up for even a few moments, there's going to be at least some coloring. That happens before you ever take delivery of your engine.
I'm sure Valvoline Restore and Protect is great, and I would not hesitate running it in a vehicle where I thought some cleaning might be needed. But even in vehicles I bought used, a few runs with Mobil 1 (Again, PAO base) and they were showing significant signs of cleaning.
I've done about 5 or 6 runs of Mobil 1 Extended Performance 0w20 in my wife's Compass 2.4, starting at about 80k miles. It has bulk synthetic oil changes from various quickie lubes up to that point. I'll be pulling the valve cover off at some point and I'm expecting it to look very clean, based on all those years of experience. I thought about running Valvoline Restore and Protect, but decided I don't believe it needs it. When I do pull that valve cover off, I'll create a thread and post it with a recap of its known history. If it surprises me and it turns out to be dirty, I may give Valvoline Restore and Protect a go.