I don't know, if JABB or strad have this pop up indicator, that tells you how many percents of the patch is loaded, but I'd like to suggest removing this from the future versions of the player, since it's rather disturbing sometimes. Instead, the progress should be displayed withing the plugin. I'm sure this is possible too?
For example in Ableton Live, this pop-up messes up the way things work and prevents certain things from working the way they should. It also actually crashes Live in some situations, but this could be their problem too.
Then in Logic, I often accidentally open a wrong project and the GPO player pops up with the cancel button disabled and there's nothing else to do than force quit the whole program or wait.
Maybe the GPO (and others) could just load in total silence like all the other plugins? Doesn't Kontakt (at least 2) show the progress withing itself too and not pop up?