Why dynamic filters don't support right outer join?

[SeaRise]

from

velox/velox/exec/HashProbe.cpp

Lines 332 to 335 in ad1f393

	(isInnerJoin(joinType_) || isLeftSemiFilterJoin(joinType_) ||
	isRightSemiFilterJoin(joinType_) || isRightSemiProjectJoin(joinType_)) &&
	table_->hashMode() != BaseHashTable::HashMode::kHash && !isSpillInput() &&
	!hasMoreSpillData()) {

we can see that dynamic filters do not support right outer join.
Why is that? Semantically, right outer join and runtime filters do not seem to conflict.