I believe that it is, as there are many people that have been led to Christ by reading Holy Scripture, even though they are separated from the Sacred Tradition. What is curious, however, is why people choose to remain separated from the Sacred Tradition that produced the text that led them?
Because one does not need sacred tradition,but one does need the Word of God/I don’t know where these traditons come from,besides the fact I don’t feel most are biblical,but I do need the Word,I know for a fact the the Word is inspiried,can’t say the same about tradtions of men.
The Sufficiency of Scripture
"First, it is necessary to understand what sola Scriptura does and does not assert. The Reformation principle of sola Scriptura has to do with the sufficiency of Scripture as our supreme authority in all spiritual matters. Sola Scriptura simply means that all truth necessary for our salvation and spiritual life is taught either explicitly or implicitly in Scripture.
It is not a claim that all truth of every kind is found in Scripture. The most ardent defender of sola Scriptura will concede, for example, that Scripture has little or nothing to say about DNA structures, microbiology, the rules of Chinese grammar, or rocket science. This or that “scientific truth” for example, may or may not be actually true, whether or not it can be supported by Scripture—but Scripture is a “more sure Word,” standing above all other truth in its authority and certainty. It is “more sure,” according to the apostle Peter, than the data we gather firsthand through our own senses (2 Pet. 1:19). Therefore Scripture is the highest and supreme authority on any matter to which it speaks. But there are many important questions on which Scripture is silent. Sola Scriptura makes no claim to the contrary.
Nor does sola Scriptura claim that everything Jesus or the apostles ever taught is preserved in Scripture. It only means that everything necessary, everything binding on our consciences, and everything God requires of us is given to us in Scripture.
Furthermore, we are forbidden to add to or take way from Scripture (cf. Deut. 4:2; 12:32, cf. Rev. 22:18-19). To do so is to lay on people’s shoulders a burden that God Himself does not intend for them to bear (cf. Matt. 23:4).
Scripture is therefore the perfect and only standard of spiritual truth, revealing infallibly all that we must believe in order to be saved, and all that we must do in order to glorify God. That—no more, no less—is what sola Scriptura means
So sola Scriptura simply means that Scripture is sufficient. The fact that Jesus did and taught many things not recorded in Scripture (Jn. 20:30; 21:25) is wholly irrelevant to the principle of sola Scriptura. The fact that most of the apostles’ actual sermons in the early churches were not written down and preserved for us does not diminish the truth of biblical sufficiency one bit. What is certain is that all that is necessary is in Scripture"
John MacArthur