I agree. I was thinking the same thing.
I think legalism is the issue. So many fear getting tangled up in that messy web, so they just prefer to steer clear. Some will even accuse others of observing something as a necessary requirement when they are only doing it out of remembrance.
I personally see nothing wrong with observing the feasts, if this is what the person chooses to do, just so long as they remember that observing them is not a requirement, rather their focus should be on Jesus as fulfilling these various feasts. Maybe they could even modify by focusing on the NT scriptures that unite with the OT ones, concerning these specific feasts?
There aren't any Jewish people in my family (just long distant ones), but I would have no issue observing these feasts, just that I would always be acknowledging Jesus in them. I would also want my faith known so I didn't mislead anyone into thinking I was Jewish or supported the Jewish rejection of Jesus & the NT scriptures.
The ones in red are not yet fulfilled.
Copy/paste...
1) Passover (Leviticus 23:5) – Pointed to the Messiah as our Passover lamb (1 Corinthians 5:7) whose blood would be shed for our sins. Jesus was crucified on the day of preparation for the Passover at the same hour that the lambs were being slaughtered for the Passover meal that evening (John 19:14).
2) Unleavened Bread (Leviticus 23:6) – Pointed to the Messiah's sinless life (as leaven is a picture of sin in the Bible), making Him the perfect sacrifice for our sins. Jesus' body was in the grave during the first days of this feast, like a kernel of wheat planted and waiting to burst forth as the bread of life.
3) First Fruits (Leviticus 23:10) – Pointed to the Messiah's resurrection as the first fruits of the righteous. Jesus was resurrected on this very day, which is one of the reasons that Paul refers to him in 1 Corinthians 15:20 as the "first fruits from the dead."
4) Weeks or Pentecost (Leviticus 23:16) – Occurred fifty days after the beginning of the Feast of Unleavened Bread and pointed to the great harvest of souls and the gift of the Holy Spirit for both Jew and Gentile, who would be brought into the kingdom of God during the Church Age (see Acts 2). The Church was actually established on this day when God poured out His Holy Spirit and 3,000 Jews responded to Peter's great sermon and his first proclamation of the gospel.
5) Trumpets (Leviticus 23:24) – The first of the fall feasts. Many believe this day points to the Rapture of the Church when the Messiah Jesus will appear in the heavens as He comes for His bride, the Church. The Rapture is always associated in Scripture with the blowing of a loud trumpet (1 Thessalonians 4:13-18 and 1 Corinthians 15:52).
6) Day of Atonement (Leviticus 23:27) – Many believe this prophetically points to the day of the Second Coming of Jesus when He will return to earth. That will be the Day of Atonement for the Jewish remnant when they "look upon Him whom they have pierced," repent of their sins, and receive Him as their Messiah (Zechariah 12:10 and Romans 11:1-6, 25-36).
7) Tabernacles or Booths (Leviticus 23:34) – Many scholars believe that this feast day points to the Lord's promise that He will once again “tabernacle” with His people when He returns to reign over all the world (Micah 4:1-7).