Analyzing 9k firmware samples sure must be a lot of work, I wish every IT device manufacturer would be scrutinized with a magnifying glass in the very same way.
Without that, this just seems kinda misleading because I'm pretty sure every bigger IT device manufacturer has myriads of security issues [0] that simply never get surfaced to the same degree, like those of Huawei, for political reasons.
[0] https://www.tomshardware.com/news/cisco-backdoor-hardcoded-a...