It most definitely could be that other hoya.
This one is very easy but I attributed that to the fact that I've grown it from a two node cutting and it has always been used to the climate in my home. It's actually not very ideal conditions for a hoya. It's been in the windowsill of a west facing window, which is great but right below it are our baseboard heaters... ugh I don't even like those things!
It does stay relatively on the dry side. In fact before today, I cant even remembered when I watered it previously. Poor thing!
I will hopefully be able to correctly identify it when it blooms.
I still cant believe I overlooked it! Also i seem to be getting a bloom on croton right now. I'm going to keep an eye on it and will post it within the next few days.