Production monitor silently fail on mysql gone away error

MHi.

For some reason, production monitor seems to crash while trying to save the recent version of the module.
Error is General error: 2006 MySQL server has gone away.

One of the reason would be IMHO the incredibly huge size of the data:
if I setup a try catch on _prod_monitor_update_refresh like

  try{  $result = drupal_write_record('prod_monitor_site_modules', $modules, array('id')); }catch(Exception $e) {print_r($e);}

I get a 4.9 mb payload!

if I alter the function to

 
         $data["releases"] = array(reset($data["releases"]));  

then update now works.

Do we need other info than the most recent release?