As far as we know there's no UMPK kit for the 9000kg bombs.
Even if there were one, dropping such a load would require a TU-95 bomber which isn't used in this conflict. Every glide bomb so far has been dropped by fighter aircraft whose weapon pylons support up to a maximum weight of 3000kg per pylon, dependent on the jet and particular hardpoint.
Besides, dropping several smaller warheads is in general more effective than one single massive one.
Edit: in case you want to see the preparation & deployment of the largest explosives (FAB-3000) currently used by Russia in Ukraine: https://old.reddit.com/r/UkraineRussiaReport/comments/1e2wb9y/ru_pov_fab3000_installation_and_delivery/
Been going on for months now, fields are already littered with fiber cables https://i.redd.it/dhqh7hdzh64f1.jpeg , same for the trees https://i.redd.it/qce5c5n7pwpe1.png , impacting nature as always https://i.redd.it/z2dy2m26p45f1.jpeg . Soldiers are occasionally cutting wires https://old.reddit.com/r/UkraineRussiaReport/comments/1l5nz54/ru_pov_russians_cut_ukrainian_drones_fiber_optic/ ,even with other drones https://old.reddit.com/r/UkraineRussiaReport/comments/1kxcwex/ru_pov_russian_dji_mavic_uses_its_propellers_to/ .
The issue with destroying the wire is that finding the correct one becomes impossible after sustained use in a certain area, let alone being able to reach the cable safely in the first place.