No. The official Gold Card reference concerns an employment-based permanent-residence category; E-2 treaty investor is a nonimmigrant category.
Keep the full abbreviation and category name
Do not remove the B when summarizing the Gold Card FAQ. Similar labels do not make eligibility, documents, payments or the intended immigration outcome interchangeable.
The applicant must still be eligible for lawful permanent residence, admissible, and have a visa available. Marketing material sometimes drops a letter or compresses separate labels together for the sake of a short headline, so a careful reader should never assume a summary preserved the original abbreviation exactly. When a document mixes an employment-based, permanent-residence classification with a nonimmigrant treaty-investor category, ask counsel to name the specific underlying classification being invoked in that particular filing before treating the labels as related. Check the date and source of whatever material is being read, since promotional pages are updated more often than the underlying rules, and an older screenshot can describe a program that has since changed. A shared theme between separate programs, such as removing a job-offer requirement, does not make their eligibility standards, evidentiary burdens, or outcomes interchangeable. Treat any abbreviation as a precise legal term rather than a convenient shorthand, and ask for the full name spelled out whenever the shortened version leaves room for doubt.