I agree with you, they're not a perfect match, but possibly close parent lines. Keep in mind that some are variable, especially if seedlings. I have seen several orchids I thought I wanted, then found many of that name that were ugly, in my mind, when I looked it up on line. Appearently, the grower will register a cross, and sell all the seedlings under the name they gave it, even though all the seedlings aren't the same.That's why I prefer to buy at shows, where I can see what I'm buying. In any event, you have a dendrobium, looks like a compact form. Maybe laurel will chime in on possibilities.
This would be a likely bloom time for MA too. Not only is there variation in species coloration but there are a number of hybrids. BTW, Aussie's Chip only puts out one or two flowers per spike and they are pendant.