If this is all true then cut exploration
If you're at the point in the game where you are winning with 2/2 zombies then you have 7 lands in play already and you have most likely already taken over the game with Uro, you don't need 1 more zombie per turn.
I agree that turn 1 exploration + 2nd land, turn 2 intuition, turn 3 depths + stage, turn 4 attack with 2020 kills faster than turn 3 intuition turn 4 depths turn 5 stage turn 6 attack with 2020 but putting exploration in your deck to achieve this is a huge cost. (And by doing this you're spending basically all your mana on the first 4 turns into making the 2020, so if the reasoning is to be able to goldfish combo decks faster, what respectable combo deck isn't just going to kill you by then anyway).
Cards like Mox Diamond / Exploration are always card disadvantage, which is why you only see these effects played in decks that either have effects like 4x Loam / Bob to easily recoup the card disadvantage, or Simic Growth Chamber, etc. At minimum, decks that play these cards should have a high land count, to make sure that even if they can't immediately recover the card disadvantage from these cards, the effects are at least usable almost all of the time for the tempo gain (i.e. you have the extra lands in your hand to play/discard).
When you only have 28 lands (plus 2 loam) in your 80 card deck then a large amount of the time the exploration is simply not going to do anything (or realistically it's going to be a 0/0 Arboreal Grazer). This is a huge downside for a deck that's ostensibly trying to play some kind of grindy 1-for-1 control gameplan (you have 4 plow and 4 thoughtseize in your maindeck). Relying on Loam/Intuition to compensate for this is the source of the inconsistency
For example looking at some random lands build off goldfish
https://www.mtggoldfish.com/deck/3369256#online
4 Exploration + 4 Diamond
35 Lands maindeck
4 maindeck loam plus 3 gamble to find it
3 maindeck sylvan library as an additional cheap way to recover the card disadvantage off Diamond/Exploration
You might try to argue that your Exploration doesn't need so much support because you aren't also playing Diamond with it, but not playing Diamond doesn't alleviate the issue of "what percentage of the time I draw Exploration is it going to brick", which in my opinion is going to be too often (the inconsistency problem).
If you want to forge ahead with this idea then at least acknowledge that the Stryfo deck is playing 30 lands maindeck compared to your 28 despite not playing any explorations and the only "colourless" source is the 1 Karakas. The only lands that don't cast Uro are the Karakas, Badlands, and Swamp. You're trying to play a 4-colour 80 card control deck that needs to pay UUGG with 28 lands including:
1 Swamp
1 Plains
1 Cabal Pit
1 Karakas
1 Blast Zone
4 Wasteland
1 Stage
1 Field of the Dead
1 Depths