Thing is, he probably just overplayed his hand by having verbal diarrhea at his rallies. Had he NOT begun claiming, weeks out, this would DEF be a rigged election, etc. In doing so he kind of insured that there would be extra attention paid, every detail abided.
Of especially magnified importance in a nation almost evenly divided, and purposely riled up to a knifes edge. Because everyone knew, results would be contested on the tiniest thing, (and he’s sooo good at that shit!) Instead they went painstakingly slow, it’s true, but now stand before cameras confidently and clearly attesting that they can 100% stand by the counts. His inability to produce any evidence proves it’s true, I think.
But, if he’d kept his giant maw shut, and started all this up after the vote, things might have been very different. It’s a big country, millions of votes, a myriad of systems in play, without that motivation to hyper vigilance, they might well have found some tiny irregularities…and wouldn’t things be in a mess then?