It's merely security theater.

It reminds me of when airports started scanning people's shoes because an attacker had used a shoe bomb. Yes, that'll stop an attacker trying a shoe bomb again, but it disadvantages every traveller and attackers know to put explosives elsewhere.

“attacker had used a shoe bomb”

It’s even dumber than that. An attacker tried and failed to use a shoe bomb, and yet his failure has caused untold hours of useless delay for over 13 years now.

Most ransomware attacks are opportunistic. They scan basically the whole internet for vulnerabilities and attack from there. It's usually not a skilled attacker targeting a specific company.

Ransomware is a huge and growing problem. Very different than airline security, where attacks are extremely uncommon. If planes were constantly getting blown up, and if a majority of those attacks started with a shoe bomb, then checking everyone's shoes would seem a lot more reasonable, no?