"sent forth" ( apostello )tells us the Ministering Spirits were, and are, set aside and were, and are, sent forth. Heb 13:2 tells us that in the past people have entertained angels unawares as a lesson for the reader.
Why would there need to be a reminder to show hospitability to strangers, because they may be Angels, if Angels didn't visit them/us anymore ?
G649
ἀποστέλλω
apostellō
ap-os-tel'-lo
From G575 and G4724; set apart, that is, (by implication) to send out (properly on a mission) literally or figuratively: - put in, send (away, forth, out), set [at liberty].
Yeah it's a very special reminder of the hierachy in Yahweh's Kingdom. Jesus is Lord !
Hebrews may have been written to the Messianic Jew but I don't see why Yahweh would only send His Angels to aid them alone. "No Jew nor Greek" etc. Every believer is an Heir of Salvation.
Gal 4:6-7 KJV And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father. (7) Wherefore thou art no more a servant, but a son; and if a son, then an heir of God through Christ.
When do you suggest Yahweh's angels stopped ministering to believers and/or the Jews ?