You are confusing positional gifts and gifts of the spirit. Personally, I function in the full gifts of the Spirit appropriated to me...
... and use them whenever I can to alert the saints to the problem of counterfeits, familiar spirits and liars of the NAR false prophetic movement. It drives those people crazy, cause I know their game and how they slaughter true faith in believers’ lives.
It’s just a manner of speaking to say I believe the gifts are for today.
Are we to take what Paul said, that “all are to be ambitious to prophesy” as the idea that we can obtain more giftings from God as our faith grows?
I don’t know the answer to this.
But to deny tongues for example, would be denying that the Word of God is true, that John’s disciples didn’t really speak in tongues or that Peter himself didn’t speak in another language that day of Pentecost.
(It’s called Peter’s “this is that” speech. This is that of which the Prophet Joel prophesied... that God will pour out His spirit on all mankind... etc.)
Who are we to dismiss the idea that these gifts, positional and functional, were somehow only relegated to the 1st Century Jewish believers and converted Gentiles to Christ among them?
Nuts to that nonsense. The Lord requires us to be fully equipped by the purposing and unction of His Holy Spirit to face this evil day.
Being fully equipped,. though, is not Scripturally held that a person operates in all the gifts of the Spirit. According to Scripture, it's Scripture itself that reuslts in the person being fully equipped for every good work (2 Timothy 3:16-17)
As bb pointed out, the SPIRIT apportions then as HE will.
The purpose isn't that every believer receive every gift. Different believers receive different gifts that they are to operate within the church body so that IT is complete in function as the different members operate in their respective gifts together as a body.
And as far as two groups of people speaking in tongues, that in no way sets precedent that all believers speak in tongues when filled with the Holy Spirit.
Because of my association with acquaintances who are Pentecostal/prosperity gospel types, I did a search on every verse I could find in Scripture that deals with the Holy Spirit, the filling, the baptism, praying in the Spirit etc.
What I found was that there were only four different distinct times that tongues was spoken when someone was filled with the Spirit.
The other times people were filled with the Spirit, other things happened instead.
So filling did not always result in tongues speaking.