Seeing that this was your first oil change, it's possible that you were seeing some of the strange stuff that is often found.
For the moment, I'm guessing this glob was on the screen inlet filter that is on the lower drain plug with the two screws retaining it? If so, your glob is not nearly as disconcerting as what I found on mine on its first oil change.
There was some sort of clothlike material clinging to the screen.
I was so concerned that I called my dealer and asked him about it. He said finding stuff like mine had wasn't unusual. I asked him about the possibility that the oil flow had been restricted to the point that some damage due to low oil pressure might exist.
He then told me that if there was enough oil pressure to keep the hydraulic valve lifters from clattering then the rest of the engine was fine.
8000+ miles later, it seems that he was right.
Engine oil doesn't separate over time. Even the cheapest ones.
As for your glob, assuming you totally removed it, don't worry about it. Your engine is fine. It is very unlikely that another glob is lurking in the sump and the likelyhood of causing some real problems by using an oil flush in your engine is more likely to damage it than just waiting until your next oil change.
If you are the worrying type who can't let go of the idea that something needs to be flushed out then just ride your motorcycle for a few hundred miles and then drain and refill the oil sump. Don't bother with the filter at this change. Just check the screen on the oil inlet and clean it. Then, carefully refill with new oil.
Oh. By the way. After my first oil change, there was never another bit of clothlike material found on my pump inlet screen. Just some metal filings on both of the drain magnets.
Have a good one!