Just like DW-1 in transmission troubles, starting to see a trend with stuck rings with active VCM running on synthetic BLEND oil.
Just calling it like I see it.
I think it very likely there are quite a bit of variables beyond if the oil is a blend or the oils flash point. Case in point: Pennzoil Gold has a higher flash point than Pennzoil Ultra Platinum, even regular dino Pennzoil has a higher flash point than the full synth. And honestly wouldn't look at FP for the issues you are concerned with as a metric, maybe might look to NOACK, but even that isn't a real good metric alone, nor is any lab test on fresh oil.
Ultimately with a DI engine I think what you are worried about has more to due with fuel dilution and pulling the oil out of grade and killing the oil's additive package. That would have more to do with driving conditions and oil change interval. The solution then isn't to demonize blends, its to change the oil before it craps out based on the driving conditions. Which is the goal for any oil.
IMHO the only Honda that anything other than an a too long interval would matter in is the NSX.
I will stick to buying the dirt cheapest SN+/SP/GF-5/6 oil I can find or have put in the car as the benefit of expensive synths (and I'm an AMSOIL fan and user) is extended OCI's. And I just don't think any oil can beat DI fuel dilution.