Well, for starters it is just a whole lot less work and money to distribute and maintain binaries up from the distributers' side, for the developers it comes down to a lower-barrier of entry to not have to adjust their workflow to whatever x platform may demand for building on their servers and in the end that gives the users more choices to work with. Of course, this is all in a perfect world where the chain of trust isn't broken so easily, which isn't an easy feat but given platforms like Windows thrive in spite of it, it is probably not as bad as many people may think.
All of that said, not particularly speaking for OpenAPK here, given their motives seems rather unclear to me. If I am to be charitable, I guess they're just trying to provide a different platform than f-droid for discoverability, but for whatever reason they seem to be marketing the distribution-side of things more which is just odd to me, but alas.
> given platforms like Windows thrive in spite of it, it is probably not as bad as many people may think.
There is a lot of extra work done behind the scenes to "thrive in spite of it". Windows Defender (built into Windows after XP) has to periodically download updated virus definitions and always scans programs for potential malware, and still can't catch them all.
All of that said, not particularly speaking for OpenAPK here, given their motives seems rather unclear to me. If I am to be charitable, I guess they're just trying to provide a different platform than f-droid for discoverability, but for whatever reason they seem to be marketing the distribution-side of things more which is just odd to me, but alas.