>>11725280Because AEW is a distant 2nd behind WWE in literally every other metric (other than Meltzer stars, lel), so they want to have this as the one victory WWE can never take away from them.
Of course, it's a pointless exercise anyway. WWE makes more money from shows half the size of All In because of their ticket pricing and venue fees being waived because of the boon to the local economy. If WWE chose to sell tickets for under $30 as they were doing for All In, they could very easily beat 72k, 81k or whatever if they chose to have Wrestlemania in a hot market like the UK. They won't, though, because WWE is a corporation whose number 1 duty is to make money, not records.