Why dozer don't get caught by demo traps? Options

[A34Comet]

I didn't expect that a question since I didn't realize that except original dozers and workers, other vehicle won't be spared by demo trap even if they have disarm weapon and landmine damage profe.

The dozers' code seems pretty simple and nothing funcy modeltag in there, how did dozer make themself a exception when they approach to disarm a demotrap?