The constant opening and closing of the Nether portal makes it easier for the Zombified Piglin to spawn.

Observed Result

• Using gimmicks to ignite and destroy Nether portals at high speed will increase the frequency of Zombified Piglins spawning from the portals.

 

I feel uncomfortable, but there are other phenomena in Bedrock Edition that speed up generation, so if this is the intended specification, I would like to use it for trapping.