As someone in the renewables industry, you should know that literally 100% of all renewables problems ever are caused by their intermittency. Were you late to work? It’s because the sun doesn’t shine at nighttime. If you say “the blackout was caused by renewables”, Joe Q Public will assume you’re referring to intermittency.

Distinguishing between “renewables” and whether the inverters were grid-forming or not, is a useful distinction, even if it hurts anyone who’s read a dictionary.