Supposedly it just scratches „that itch” - mindless grind and loot cycle integrated into survivor-like formula. There are more games like it but HoT is also nailing aesthetics. Death Must Die is another game in similar vein but they also went one step further and copied upgrades from Hades too (this one I played myself). Both are enjoyable remixes on proven formulas and there’s nothing wrong with that.
That’s why there are less and less early adopters overall. Big tech cut the branch they were sitting on years ago and we’ve been in a free fall ever since.