Because look up, how copper is being fixed and laid.
This is ok like this to fix telephone line, but not ok to fix for ADSL. Don't expect more than 1-2Mbps on cable that is repaired such way.
Those guys does their best, but unfortunately high speed data transfers over copper possible only if cables are new and very securely installed, but if it is lebanon, with it's messy excavators, landslides, and etc - cables will be broken very often and will be repaired under rain and in mud, then alternative approaches should be taken.