Purification Bug / nerf?

I currently am trying to get advance prot 4 so I can use my golem armor I've crafted and every time the villager gets hit by the zombie in my setup the villager always gets out of the transportation cart and the zombie stops focusing for the villager as well and I need to tp out from my waystone and tp back for the zombie to get fixated on the villager again.

Can somebody please tell me whether this is intentional or just a bug as its very annoying.

I'm using a golden axe with only purifcation 5 with quality - skill issue

all angles of Setup below

https://preview.redd.it/elgzdj7zujce1.png?width=1920&format=png&auto=webp&s=f07f57f7ea266d6bbce065500c61861bb3220f00

https://preview.redd.it/lsutpie1vjce1.png?width=1920&format=png&auto=webp&s=5c258c248a1fa259a03d4cdfb490d1b0bb7ba782

https://preview.redd.it/5h14gyr6ujce1.png?width=1920&format=png&auto=webp&s=e46dadd5f3b83cfccc9ad3e6adc9e2767febb576