Asides from the overly annoying bars that obfuscate your play at times, progressing in this pack is very easy. You can pretty much start with steel tools once you get your smeltery. That bypasses the copper, flint, iron, bronze and alumite tiers of toools. The poorly guarded dungeons will give you plenty of anvils or chainmail armor. Through that your set for steel. Besides the stupid 5 minute suicide timer in the nether, going and mining there is also quite easy. Alumite for the progress on dynamos & other things is easily obtained. Titanium for the Inert stone can be made entirely with the smeltery. All you ever need to touch in Mariculture is the vat. Magnetite Armor (which you are absolutely bound to get at the rate the meteors are falling down) is easy and quick protection.
Food loots from dungeons are also ridiculous.
2 stacks of deluxe cheeseburgers in a single loot chest? Lets also not talk about the spammingly abundant igloos with loot chests within that also contain portal guns, food en masse, and other precious dungeon loot.
all in all the concept is good, but if this pack aims to be hard it needs to be less annoying and unfair, and more concise with the progression, because right now, you can skip 90% of it without running risk of something bad happening to you.
People get upset when hard packs are hard. It's just a learning curve figuring things out. And may mean players have to adapt and take things a bit slower than they are used to.
Also, mechanics like this dont make the pack hard. The easiest way to progress in this is just to suicide a lot. Thats a core difference to things like BnB where its actually hard, but not because arbitrary buggy bars say that you die, instead you die because the modpack hates you.