You have lots of misinformation there from a Jewabe site.
For the first two full centuries, every believer in Yeshua kept his sabbaths and feasts just as he and his apostles did.
There was neither Jew nor gentile, just as the epistles of Paul emphasize. Read the epistles carefully, and you will see the traditional worship perfectly kept. This is of course not surprising, as most of the body was Hebrews anyway, but that is definitely what was called for in Acts 15, where the council of Jerusalem stated that they expected that the new believers would learn ‘Moses’ by hearing him preached “every sabbath day” in their synagogue. (Acts 15:21)
Real messianic worship is not the Jewabe nonsense of keeping the Pharisee’s traditions that Yeshua rejected, but that is what is seen in many “messianic” congregations.
If you have another site that lists the characteristics of a Messianic congregation better than this - please feel free to put the link down here so.we can look at it.