It's not that they're printing too many cards from each set, making the cards less valuable due to a lack of scarcity. It's that they're printing too many sets, driving down the value of each set as players get overwhelmed by the volume of new keywords and mechanics.

And most card shops exist because of the secondary MTG market. So this isn't just card speculators being impacted, but the brick-and-mortar stores that created the popularity of MTG in the first place.

Hasbro is eating their player base in order to secure more and faster profits. Yeah, this lawsuit isn't the best angle, but it's going to be a good thing if it works and forces Hasbro to stop this shit.