1. Shared hosting and cPanel are still dominant
"Most shared hosting plans use cpanel. It's still widely used yes for a lot of smaller websites." — kiritanpo
2. Legacy PHP‑based control panels are aging and increasingly vulnerable
"These PHP systems ... are most likely the biggest target besides windows." — omnimus
3. GUI wrappers simplify administration for non‑technical users but add hidden complexity and security trade‑offs
"The concept of a GUI wrapper on top of the Linux ecosystem is what's broken." — doublerabbit