Fixed. Though if you're looking at particularly long load times where it is stuck displaying ShinyIcons, it might not be ShinyIcons doing it.
It could be the next step in the loading process that is taking significant time and not updating what's on screen. ShinyIcons looks like the culprit because it's the last to load, disabling it will make the previous mod to load look like it takes forever instead.
Regardless, the excessive logging was a mistake and shouldn't happen again.