The guy in video apparently doesn't know too much about Mazda SkyActiv-G engines. He cut open a Thailand-made 1WPE-14-302 Mazda OEM filter but kept wondering why there's no oil left inside the filter, and why he didn't see an anti-drainback valve! The oil was all gone because there's no ADBV. And the oil filter for SA-G is mounted baseplate up hence it doesn't need ADBV! Further, we can see an o-ring on the side of by-pass valve touching center core of the filtering media, how is it possible it would be leaking unfiltered oil commented by the guy? This's a perfect example of false information easily be found on the Internet!
Here are several links of info from Bob is the Oil Guy on all 3 Mazda OEM filters been cut open with pictures:
Mazda PE01-14-302 Factory Filter CUT OPEN
Mazda 1WPE-14-302 Filter 5k mi - Mystery Bypass!
Mazda PE01-14-302A-MV used cut open 7,779 miles
All of them looked excellent after many thousand miles of service including the Mexican made one. So Lbear, don't bother looking for unknown aftermarket oil filters, just go get OEM. Yeah, Mazda did go cheap discontinued Japanese oil filter and outsourced to other manufacturers. But oil filters made by those manufacturers still have to meet the required specifications given by Mazda. You can always get the Denso one if you ask for it at dealer's parts department with 1WPE-14-302 part number. They can always order one for you if they don't have it in stock. Remember even the Mexican made OEM oil filter is excellent according to the cut-open result.
BTW, 1WPE-14-302 from Thailand is most likely made by Denso as it's physically different in size comparing to PE01-14-302A from Japan made by Tokyo Roki. Some claim PE01-14-302A-MV from Mexico is made by Wix but someone had cut open both Mazda "Value Products" PE01-14-302A-MV and Wix 57002 and found they're definitely different.