Before entering the Spider Web, Su Ming had actually made every possible preparation, including dealing with a swarm of spiders—even Spider-Men from various Parallel Universes—or perhaps the Morlun Family, or even the ancient god itself.
But when he truly encountered his target at the hub where the webbed conduits converged, before Deathstroke could display any force, Great Weaver, representing the Spider-God, yielded first and warmly proposed cooperation.
The ancient god, now the network itself, also wished to weave the web larger and more beautifully. It had previously been troubled by its inability to send Spider Totems beyond the Omniverse, but Deathstroke's arrival made up for that shortcoming.
It could contribute the Spider Web as a transportation network between different worlds, making every world's Spider-Man subconsciously feel close to Deathstroke. In exchange, Deathstroke would help it spread more Spider Totems beyond the Omniverse, allowing it to gain a broader source of energy.
Su Ming considered it. Rather than wiping out all these spiders and replacing them with his own people to coerce the Spider-God, which had become the web itself, it was better to accept the terms.
After all, spiders were still better at playing with spider webs. If you put an ant on one, whether it could function properly at all would be a question.
This cooperation achieved the intended objective, and the ancient god even offered an extra benefit: the "favorability" of every Parallel World's Spider-Man? That had some value.
Spider-Man was to Marvel what Batwoman was to DC. He was undoubtedly a protagonist. Whether the ancient god hypnotized them in dreams or gave them psychological suggestions while they were awake, the Spider-Men who became tools were indeed quite useful.
Besides the fact that little Spider-Man had many friends and could conveniently gather manpower, he could also be sacrificed