Yes Kessen Lv10 will destroy Squad Centre

First defence against Kessen – would be a lv10.

The rumours are true as you can see from screen shot – using magnetic pulse Kessen lv10 will destroy a Squad Centre.

Just shared replay in chat – while I have it in my log ask to see. My new base still only yielded one star despite that. 

Best defence is work out line of sight from droideka to squad centre and place traps/defences accordingly.