That’s the same train of thaught I had when telnet was declared a back door in huawei devices.

theregister.com/…/huawei_enterprise_router_backdo…

During the hey day I passed hcna-rs, the first thing we were taught was to just use telnet as a means to enable shh, then log back in and disable telnet.

Moral of the story, do not under estimate a nation state’s use of global tech media to effect a global drop of a product or manufacturer from the market.