In my former circles (highly Dispensational), it was all-the-rage to celebrate all the festivals but with a 'Messianic Jewish' spin. But Dispensationalism is error, so also the fruit from that root. Now the former things (of Moses) have passed away; "with a change in priesthood, comes a change in the law also" (Heb. 7:12). The Passover pointed to Christ (who is 'our Passover Lamb' John 1:29, 1 Cor. 5:7, [WLC 34](
https://opc.org/lc.html)), and Christ has come. Why return to shadows when the substance is here (see the Epistle to the Hebrews)? He celebrated the 'last Passover' before accomplishing/completing his own 'Exodus' (Luke 9:31) and all the reality the Passover pointed to--and in the place of the Passover he gave us the Lord's Supper. 🤙