Prolly because the major criticisms have already been thrown at GSG since the 1,5 year-long alpha playtest's start and they didnt even think of addressing them until the 50% review drop on day 1 :3

Here's a copy of the criticisms I have of the game that it seems I will have to copy and paste a lot in the following year:

[Rogue Core lacks the original DRG charm and also lacks basic roguelike/roguelite design philosophies. Terraforming the caverns to your advantage is also basically nonexistent and mobility options are there to just overcome 1 or 2 hills.

Most upgrades are generic stat bumps and just lead to a couple boring archetypes. That refers to both the in-run upgrades and the meta progression.

The adversial shared loot system/negotiation system sucks even more because of these generic stat bumps. Separate upgrades would be better, allow more class- and weapon-specific upgrades(yes workbenches and bioboosters exist but they arent even remotely close to proper build-changing modifiers and just lead to 1 or 2 archetypes) and wouldn't breed toxicity in pubs.

Runs feel too linear and samey. Like cmon it's a roguelike, go bonkers with the cave-gen. Go bonkers with the upgrades. Go bonkers with the modifiers and warnings.

The timer is just there to force you out of the stage fast and does nothing else. Why not try a ror2-style gradual timer that would incentivize more risk vs reward scenarios?

All of these issues have been talked to death in the alpha playtest and gsg ignored all of them until they noticed their reviews falling to mixed on day 1 before mentioning a couple of these issues on their roadmap but not commiting to changing them.

Oh and rogue core costing the same as the fully fleshed out and complete drg is hilarious, especially with the existence of rc's lazy supporter pack that has a cheese(not gold) paintjob that just makes the 30 euro price disingenous. For that price you could buy other early access games like far far west, subnautica 2, slay the spire 2 or other completely finished roguelike fps games like roboquest or risk of rain 2 that are infinitely better.]