Amplitude instrumentation with events as parameter of category (old Google analytics way)

While instrumenting amplitude for analytics, What if I put actions (events) like a
 <new item created> into a parameterr (e.g., an action property) instead of tracking them as separate events,

Will this be a problem at the time of analyzing or using various charts of amplitude  ?


This:
{
  "event": "user_action",
  "properties": {
    "action": "new_item_created"
  }
}


Instead of this:
{
  "event": "new_item_created",
  "properties": {
    "item_type": "document",
    "user_id": "12345"
  }
}