Fair enough. It's a discussion not a trial where someone is put to death for disagreeing.
It does establish that the title to the article is not incorrect. It could have included other churches that believe the Holy Spirit indwells at baptism rather than upon Faith, but the title is not wrong.
Even though there are no explicit infant Baptisms in Scripture, they aren't explicitly forbidden either. So at most we can say Scripture is neutral.
Sure just as it is neutral about a whole bunch of teachings. ;-)
BTW, you can find the Trinity in Scripture.
The components are present (Father, Son, and Holy Spirit), but the cottage industry of heresy revolving exactly around the essence and composition of the Trinity demonstrates that Scripture itself does not explicitly convey the consubstantial nature of the Three Persons, sharing One and the same Substance. The relationship of Father and Son is the only thing explicit, with the Holy Spirit as a "helper", somehow tied to the other two. The word "Trinity" comes from "tri-unity" - a concept feverishly opposed by Arius, Macedonius, the Pneumatachi, the semi-Araians, Gilbert of Poitiers, etc., and not cast in stone until Nicaea.