i believe they removed that embedded miner due to the legalities of it. whether you CALL it "support form others" or an "illegal botnet" same thing, your making a PC run something they don't know about and that has legalities ;(
hence they removed the embedded miner.
tbh i don't think there was ever an official statement on why they removed it but that's my guess why ;\
I see a webminer there but only for some coins. (Bytecoin Monero FantomCoin QuazarCoin DigitalNote MonetaVerde)
Or do you mean another embedded miner ?
Yes when i dont tell the user, its nearly the same, but i dunno take over others pcs which is the big difference

my suggest is ETH or XMR with CPU , and ETH with GPU using their client, and make sure enable 2FA, hackers be crazy this year! haha
best of mining!
eth mining is great.
if u also use some laptops, better use an CLI miner (1 MH/s on GUI vs. 1.4MH/s on CLI - win10)
and per r9 280x dc2 oc (14-17 MH/s on GUI vs. 18-19 MH/s on CLI - win10)