For five years, execs have been trying to obfuscate that we missed the LEO disruption. Lots of distraction with "LEO mania", "very few applications require latency", "equitable access to LEO", "LEO is bad for the environment", yada yada yada. The collapse in stock price support is a long time coming, it's a culmination of these denials collapsing under the weight of obvious market trends.
But notable tipping points for the collapse are:
Guru's completely tone-deaf sale, even though it's a tax cover people know you can control the timing of such things. The tone this sends to the market is horrible.
Mark and Guru's fumbling and inartful eplanation on the earnings call of how and why Viasat is turning to LEO >now<. It wasn't a confidence inspiring exchange and smelled like a move of desperation to attend to the bleeding. It exposed how management ignored the disruptions and weren't attentive to the market for 5 years.