The fact both TRON and STEEM went up today post the announcement only proves that the market and industry at large view this partnership as a mutually beneficial alliance.
That's just low market cap cryptos being low market cap cryptos. We need more time to decide if the market is approving, especially since the details regarding this partnership are very much unclear.
That being said, welcome to Steem. Interesting times ahead.
Also, the announcement he's referring to is his Twitter post. It didn't hit Steem until many hours later. I found out about it from the Steem post last night, by Justin's brand new account.
So the initial rise has nothing to do with how Steem users feel. We'll find that out over the next couple days and weeks, as people power down, sell, buy, etc.