A member of T2 EOS (the dev, I believe) kindly pointed me to google which illustrates how iPhones do not accept nor support Bluetooth filesharing.
The excercise was to dig out an older mac, connect, and look there, fileshare button appears in the settings > Bluetooth for that connection.
I guess iPhones suck 
(or not, hey, maybe it is actually safer!)
I’ll try to fix kde/gconnect in regard since that uses WiFi and already works on one direction, just need to fix the other direction (possibly some firewall setting, will see in the respective comunity)