I did some research on the Saints you mentioned and I couldn’t find anything, but I believe that the answer is yes, at least for the older Saints. The two modern Saints are probably not venerated by Oriental Catholics as they were not canonized until after the Oriental Churches came back into communion with Rome. I can see why this would seem problematic, but as far as canon goes, anyone can venerate anybody as long as they do so for the right reasons. There is nothing in Catholic dogma that is against the veneration of Oriental Saints, even ones who were anathematized during their life time. Now, that doesn’t mean that veneration if these Saints is binding to all Catholics. He only Saints that all Catholics are required to recognize are those canonized by Rome. The other 22 sui iuris Churches can canonize anyone they want, but those canonizations are not binding for anyone, even people within that particular Church. Therefor, it is entirely possible for you to disagree with an Oriental Catholic about certain Oriental Saints and you will both remain in good standing with the Church and with God. The only time you HAVE to accept an Eastern Saint is when one is canonized by the Latin Church, such as Saint Gregory of Narek or Saint Charbel.