Why not just have year round protection? Shear is what is the concern with these engines, 24 PSI of boost occurs when its 5F or 95F, so personally I like having added buffer, and the 3.5+ HTHS of the ESP is a good start. 98% of the lower 48 doesn't need a 0w to begin with, and quality base stocks yields many a 0w30 on par or better then a 5w30 if you must have a leading 0.
I have posted a few UOA (and you can read Civic Type R ones as well), and while not the 1.5LT, the 2.0 also suffers from fuel dilution. To me that is the primary reason to run something > 20 grade. Honda also has a pretty long OLM, ranging from 9-11K, where the bulk 20g used by dealers will be a 16g or worse at that time. Will the engine go boom? nope. But the wear protection has decreased for sure.
the LL01-FE you have will be peachy, after its done you can move to oil that cost 1/2 that if you want to. If spending LL01-FE money, I would prefer Amsoil SS or HPL myself, but for the lower drain intervals I personally do, M1 ESP is the winner so far.