One crash will absolutely not make this big of an uptick. The amount of highly specialized software and hardware that is OS dependant means switching will only be possible when those companies, hell really entire industries, decide to move over to a more open standard soft/hardware setup. In this case, a crash is a big deal, but the IT teams get on it and fix it in a day or two.
Also, certain Linux machines were affected by the cloudstrike outage. Even less reason to switch when the alternative was effected as well.