No, no no. He was just saying that Sending is much closer to Tribute mechanically then it is to destruction. Though I would say there is a major difference, in that a card that sends something to the Graveyard and a card that Tributes. (e.g. Ultimate Baseball kid vs Cannon Soldier)
In any case, the terms are getting muddled here.
Send, Tribute, destroy are three different mechanics that are not equal to each other in any way.
"Send" or "send to the Graveyard" is looking for the card to go to a specific location. If it doesn't go there (like say due to Macro Cosmos effect) then it hasn't fulfilled the requirements of being sent.
"Tribute", by default would send a card to the Graveyard, but it's doesn't have to go there. This is why you can tribute a token for Cannon soldier, but you cannot send a token for Ultimate Baseball Kid. "Tribute" is not dependant on the monster going anywhere but off the field.
"Destroy" is different from all of them. When an effect destroys something, your not sending it, your not Tributing it. It could very well go to any location that a card can go to and still be considered "destroyed". Card effects that look for something to be destroyed, will not look at a card if it was Tributed, or "Send"-ed.
And the reason I use such bad grammar as "Send"-ed, is so as not to confuse the term "sent" with anything else. If a card was "sent" to the Graveyard, it's a generic statement, saying that the card went from one pace to another. But it doesn't specify any particular Game Mechanic. Sangean effect activates no mater how he was "sent" to the Graveyard. Destroyed, tributed, or an effect said to "send" him.
This is the main problem with the "send" mechanic and the English language. People too often confuse the manual action (send) with the generic event (sent).
Bottom line is "Tribute" and "send", never ever equal "destroy".