as long as your connection in good condition, that ok.... basically i always unplugged the fiber cable to move the router/ont....even i disassemble the small white box to take the cable to put inside the pipe(my room got renovation, before use white casing, now pipe inside the wall...)

just make sure take care of the tip of the cable(take some precaution like bungkus with plastic bag) as the dust might trap there and you will have some degradation....

for me, so far so good.... no disconnected issue.... except once due to broken fiber cable inside the distribution point....but fast action from tm... only take one day to fix it from my report(less than 24 hours actually... report at evening, tomorrow morning, the technical team already at my home to check the problem...)