Yeah I'm pretty sure the data loss is not a namecheap specific problem. Speaking from experience I lost an entire website (zero backups including app code - it was a horrible technical debt perfect storm situation no VCS etc) in the huge TigerMate inmotionhosting hack back in 2011 so this is nothing new. It was a PITA but the site was nothing special so I wrote it off as a valuable lesson.

If you give a shit about it, back it up.