Is this down to bad technique
Normally yes, whenever I clip mine it’s always because I’ve made a mistake, if I’d timed things better, or been paying more attention it wouldn’t have happened.
Ergo, I normally clip my pedals more when I’m tired or not concentrating, technique definitely comes into it, and obviosuly with some bikes it’s easier than others depending on BB height, suspension, and what pedals you’re using, sure sometimes it’s just a result of being SuperGnar (!) but normally it’s a case of bad timing or not paying attention.
Certainly on the Whites/Blade climb I noticed catching the odd pedal on the more technical bits
This kind of backs that up, as there’s nothing particularly techy on the Whites climb, and certainly nothing that can’t be avoided if paying attention.