What makes it a ****stomp is
when Meruem decides to use his Ren. If Meruem started with Ren in every situation at the first literal seconds, then yea it’d be a stomp, but that’s not what Meruem starts with In-Character. His go-to move is
using En and Photons to give him a general layout of the area (since he has no ****ing clue what Central Park is), gains information about Thrall, and clears the distance and tries to one tap kill them or incapacitate using pressure points.
As said by Phoeneks, matches have to be thought of as multiple different battles instead of just one. The multiple different actions Meruem takes can be split into percentiles to determine how likely it is for Thrall to win, because all he needs is a 5% chance to win against Meruem for Meruem to be eligible to join the tourney.
Let’s suppose that Meruem is equally as likely to start with Ren as he is to start with En and Photons. Right off of the bat, Thrall has a 50% chance to lose immediately, but in the other 50% Thrall can still put up a fight. In the remaining 50% chance,
I’ve already described what Meruem would do: increase his Nen and clear the distance to knock out Thrall with pressure points.
With both combatants moving towards each other, with Thrall occasionally using Lightning Strikes and Earth Manipulation in areas where he knows civilians aren’t in and Meruem firing invisible Rage Blasts towards Thrall, it would be highly unlikely for Thrall to die given that his Pain Tolerance and Durability would let him tough it out. Because of that, I won’t change the chances at all.
Let’s assume again, that for whatever random reason Meruem is equally as likely to use Ren on Thrall as he is to engage in close-quarters-combat. This makes it a 75% chance for Thrall to immediately lose. In the remaining 25% chance, Meruem would engage in close-quarters-combat and try to figure out Thrall’s rhythm.
This basically leads back to the situation I described earlier where Meruem would be confused as to how Thrall is creating magical effects without the use of Nen, thus increasing the time it takes for Meruem to figure out Thrall’s rhythm. During that time Thrall has the ability to use Earth Crush Ggs, or just Air Manipulation + Earth Crush Ggs if Meruem is flying.
And to place a final cap on the bottle, let’s say Meruem randomly decides to use Ren because the DM rolled a 51 on the percentage die. For a grand total of a 12.5% chance for Thrall to win, Meruem more than passes the criteria for entry into the tournament.
Really, it should be a 50% chance for Thrall, because if Meruem decides not to use Ren, he simply wouldn’t use it for the entire fight.