"Species that could be unlocked EASILY on easier modes, that was the point of challenge modes' replayability."
Whaaaaaat? You think the point of challenge mode is "unlocking things you don't have"? It's CHALLENGE mode. The point is right there in the name, it's a progressively more difficult challenge to overcome. You're supposed to be there because you like to challenge yourself and beat the harder levels.
You're also absolutely wrong that Chaos Theory and Challenge Mode don't have rewards. You still unlock new stuff by playing and completing objectives. It's just that the rewards are limited to inside the scenario. This is normal for games.
To use an example, if I play the campaign of StarCraft I'm going to be beating harder levels and unlocking new units and upgrades throughout it. But if I haven't finished the campaign and play a different game mode like a skirmish map it doesn't tell me I can't use a space marine because I haven't finished the campaign.
It's completely fine to keep your progression systems contained to their respective game modes, and restricting one game mode that appeals to one type of gamer because of a separate game mode that appeals to a completely different type of gamer is literally the dumbest game design decision in history.
Also, this may come as a shock to you but people enjoyed playing video games loooooooong before developers started sticking unlocks, skins and achievements into everything. It's really freaking weird that you can't even imagine enjoying a game and see no reason to play at all unless it has those things dangling in front of you like a carrot on a stick.
If playing the game isn't fun for you unless it gives you some unlock or a cosmetic every time you complete something, then what's fun for you is collecting unlocks, not playing the game.
1. More the reason why people should stop asking to forgo the damn game and just play it how it was intended, The unlocks are an incentive. Take that away and there is zero point on playing challenge mode. Frontier THEMSELVES have said this.
2. Wrong, the only "Rewards" you get is the map, everything else is handed to you at start and is ready for sandbox play. you can thank the recent update for that.
3. Did you honestly just compare compare a STRATEGY game to a PARK BUILDER? That's like trying to compare an apple to an orange, you just don't do that. Also, command and Conquer 4 is laughing at you. As are a number of other RTS games that are level based.
4. An unlock is not a restriction, it's a goal, an objective, something you need to work for. No one older than 12 wants to be handed things, what fun is a game if the work is done for you?
5. Those "Enjoyed by many" games are not park builders though, not to mention they still required skill to complete. You don't just one shot Egg Man in one level without any opposition in Sonic games, Master Chief didn't blow up a super weapon without anything to challenge him, The Dragonborn doesn't start their adventure with every shout learned in Skyrim, and the villager from Animal Crossing still had to do jobs to pay off their debts. Do you understand, games are fun be cause they offer A CHALLENGE, and when you complete that challenge you are often REWARDED for it. The Spyro game trilogy had an entire playground to tool around in for collecting everything, The OG Zoo Tycoon gave hidden animals and buildings which you can then use in sandbox without the need for cheats, EVEN JP:OG rewarded you with A WHOLE NEW GAME MODE (Site F*cking B) for completing all the missions in mission mode! The list goes on! Good Games do NOT HAND you everything, they are rewarded to you for PLAYING THE GAME!
6. Wrong on so many accounts that I'm sure half the planet would laugh at you if they could see it... possibly more. This may come as a shock to you, but many people enjoy games WAY more when they EARN things for themselves and use them later on... Not have it handed to them because "They didn't feel like playing". Again, most games are meant to challenge the player and most of them that do reward them for... Actually playing the game.