Be careful with no evident damage. You had significant limitations such as you did not check the entire roof perimeter and the decking/fascia were covered up or not visible.
I say things like this; I lifted the shingles in a couple of select locations. There was no visible drip edge flashing which is recommended. Drip edge flashing protects the roof edge and fascia from moisture damage. Additionally, the fascia aluminum wrap overlapped the shingle underlayment which is improper or substandard and may promote damage. Recommend blah blah
You’re right of course…drip edge goes under the roof felt on the bottom edge…you should call it out but I doubt they will fix it. It’s done this way because the framer felts the roof but the roofer applies the drip edge. By the time the roofer gets there the felt is already nailed in place and the drip is hard to fit under the felt with nails in the way. So he just nails it on top.
That’s a real pretty picture…see 2012 IRC R902.8.5… where it says “underlayment shall be installed over the top of the drip edge…”… .in 2018 they removed the requirement for drip edge and changed it to “where required by the manufacturer”…