Well Pocket got 10 million downloads in a week, so naturally it played a role and I don't blame Pocket for what's going on fully, as I've already said. But it was certainly the inciting incident.
TPCi is more to blame than Pocket, scalpers, or any other factor, and I've said that multiple times. A smarter company would have realized Go, which has jack all to do with the TCG, caused a massive spike of interest to the TCG 8 years ago, so you'd think a hot new app actually ABOUT the TCG would make them realize, hey, maybe this will get a bunch of new people interested in the physical TCG again. If anything, they seem bewildered that the physical TCG has been booming since Pocket dropped in October.
Similarly they had Vivid Voltage, Evolving Skies and 151 to look at in terms of recent past sets and realize their current sets might have been desirable even without the Pocket factor. But nah, they seem caught off guard again and make promises to print more on social media while bots have made everything Prismatic and even Journey Together sell out instantly.
Meanwhile, Pocket continues to get tons and tons of exclusive artwork, set to rot in digital only form, probably forever, or if we're lucky we'll get a physical set in like 5 years that offers barely a fraction of everything they've already pumped out in the last 4 months. It's probably cheaper and easier for them to just focus on digital art and not need to worry about printing and selling product, so good for them.