Has it been like this for awhile, or is this new?
I always thought it was MPQ: Dark Reign 
It hasn’t been Dark Reign for a minute lol. I feel like it’s been Adjectiveless for a few years now
MPQ: Fractured Shards
Marvel Puzzle Quest: Retroactive Rewards
Worthy Cap Puzzle Quest: Hawkeye Reign
Now: Who Sharded?
My guess is that it is search engine optimisation. Matching words in the title might give a higher rank than words only found in the description.
I suspect that the “Puzzle Quest” brand alone isn’t quite as well known these days. It’s been almost a decade since the last main series Puzzle Quest game from Infinite Interactive, and these days people may only know them from the mobile versions that were filled with microtransactions.
In contrast, there’s probably more people searching for “marvel rpg” or “hero rpg” these days.