A Dual barrel 30mm cannon IS NOT a Gatling Cannon. The only 30mm gatling cannon in existence is the GAU-8 fitted to the A-10 Warthog.
SU-25 is un pressurised it does not have the built in systems to keep a pilot alive above 20,000 feet.
SU-25 with ordinance has a maximum service ceiling of 16,000 feet
SU-25 clean has a maximum service ceiling of 23,000 feet.
Given the three facts above on SU-25 performance it is impossible for that aircraft to shoot down a airliner cruising at over 500 mph at 30,000 feet plus with cannon fire or even air to air missiles.
Once again, self claimed truth seekers seem completely inept at common sense and being able seek even basic facts before making wild unsubstantiated statements, the above is just basic military aircraft and weapons knowledge available in any book on Russian aircraft.
