John Chrysostom
How, someone will say, did they not receive the Spirit? They received the Spirit of forgiveness of sins, but had not yet received the Spirit of signs. That this is so, and that they had not received the Spirit of signs, is clear from the fact that Simon, when he saw this, came to ask for Him.
And why did they not receive the Holy Spirit after baptism? Either because Philip did not impart Him, perhaps giving this honor to the apostles, or because he himself did not possess this gift, since he was one of the seven deacons. The latter may be said with greater probability.
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From this it seems to me that this Philip was one of the seven, second after Stephen. When he baptized, he did not impart the Spirit to those being baptized, since he did not have such authority. This gift belonged only to the twelve apostles.