LTT found out about the affiliate code changes and dropped Honey as a sponsor. The problem is, when they drop a sponsor it's usually only announced on their forum page. Linus considered making a video for a wider audience but was worried he'd get shit on for bringing up an issue that
technically only impacted him.
Remember: before MegaLeg's video the only thing that was known was the affiliate code ripping, and it was only known by a handful of YouTubers warning each other in private.
My personal opinion is that they should have sounded the alarm, even though the only people getting scammed were creators, because it was a broader attack on the whole YouTube ecosystem and not just LTT. Hell, there's even precedent for LTT making self-interested YouTube videos; remember when their Amazon affiliate account got shut down and they had to beg Dread Pirate Bezos to be reinstated? YouTube creators that are pushing people to products and services should be willing and able to completely trash those services if they turn out to be shit - or, at the very least, are being shit to them.