In a way you're doing TA looking at the DOM (order book), but look deeper, look at the buyers, you'll see a mountain of buyers for STEEMBTC at 1508 (1.2 to 1.7 btc per price point) and below. On the other hand you won't see sellers at 1 btc until you go above 1640.

Also, STEEMBTC on binance had a breakdown from support, see the daily chart below:

I think it's expected that if BTC pumps, then every crypto holder is going to trade their alt coin for BTC. This doesn't say anything about the alt coin project except for human nature (greed).