It's probably just a dip, not a crash
When the US gummint started its witch hunt against Kaspersky, the ignorant, the gullible, and those who the Feds can lean on dropped Kaspersky AV. Pretty much everyone who is going to follow that herd probably already has. Now it's back to business as usual, to some degree. There are still those who will avoid Kaspersky, but there are many others who will decide to use them anyway and those are future sales.
Not to mention, for some of us the NSA's dislike is for a security product is a glowing endorsement! That might in fact help international sales.