Russia carpet bombing Raqqa?

DEBKAfile:

Russia has launched a merciless blanket air campaign, backed by Kalibr cruise missiles fired from the Caspian and Mediterranean Seas, for the object of wiping the Islamic State’s Syrian center of Raqqa off the map, DEBKAfile’s military sources report.

Western and Middle East sources tracking the campaign since Friday, Nov. 20, report that at least 75 air sorties have been conducted and are systematically razing the town of 200,000 inhabitants 160km east of Aleppo, district by district, irrespective of civilian town dwellers.

Moscow wants the entire Middle East and Muslim world to see the price exacted for launching a terrorist attack on Russia after the downing of the Metrojet airliner that killed 224 people over Egyptian Sinai on Oct. 31. Russian bombers and cruise missiles rained death and destruction on the ISIS administration center after the jihadists claimed responsibility for that disaster and published photos of a soft drink can claimed to have been rigged as a bomb for blowing the plane up.

When the Russians are done, the town will be a pile of rubble, an intelligence source told DEBKAfile.
...

This is an intelligence site within Israel that sometimes dips into speculation on intent, but it is interesting none the less in its assessment of Russian intent.  Russia has a history in the Middle East of dealing harshly with terrorist who cross that country.  75 air sorties still does not strike me as heavy, unless the weapons used are in the megatons for explosives.  The description appears to be more on like bombing strikes in World War II that did not try to limit civilian casualties.