I don't think you read my entire explanation. It's doing the same things (in general) just in a different order. But in either case you still send up the same flares of frequent downloads, possibly pulling them down faster than typical and possibly not watching them. Whether you rip the DRM off prior to download or post download it's the download.
Yes I get the app allows you to do it but the current paradigm technically allows us to do what we are getting emails now for. I get what you are saying, you are trying to figure out how to circumvent their noticing. But you won't. If they REALLY wanna stop all of it, they can, they have the resources. The only question is how much is it worth to them to do it. They knew the whole time what Fab was doing. They have just now decided to spend the resources to do something about it. This is actually a light handed way of just letting everyone to "stop, we know". In the case of the music stuff years ago they sued the hell out of some folks and financially tortured them as an example.
From here this probably goes 1 of 2 ways. They either just tamp it down with this and let it be less mainstream, or this is just a warning shot and they come hard after this.
DQ1
Sigh... No it is not doing the same thing and, for downloading legally, I am not worried about them noticing. I don't understand what is so hard to grasp.
With StreamFab, they see you downloading a ton of shit and removing the protection. You can watch the content wherever and whenever you want. You can even stop paying for Prime and you still have the content.They ban your account.
With the PrimeVideo app, they see you download a ton of shit to your device, they don't give a fuck because you can only watch that in the PrimeVideo app and if you stop paying for prime, you lose access to it. They can even say, "I know you paid for WestWorld, but HBO says i gotta remove your access to it so, sorry, but you can't watch it anymore".
So if you use the PrimeVideo app and remove the DRM OFFLINE, they are blissfully ignorant that you now have content that they cannot control (well, a copy of it)
So when you say it does the same thing but in different order, that is not the case. It's a different procedure entirely. Accessing media files from a CDN and querying a server to get a license and feeding that to a compromised CDM is not the same as access media on a protected file system and using the built-in decryption routines in the PrimeVideo app.