BU and other implementations have no deadlines, threats or code to mandatorily activate.
they have been plodding along for 2 years allowing free choice.
the only reason its hyped is because CORE want dominance ever since core set the deadlines and votes and threats. and core are realising that not everyone is buying into cores half baked promises.
core are scared of losing their dictatorship TIER network plans, especially if people wake up and realise diverse decentralisation of a multiple implementation PEER network is better than blockstream(core) centralised upper Tier network and a cesspit of nonfull nodes down tier.
remember segwit activation does not fix maleability. or spam or guarantee 2mb..
it all requires people moving funds weeks-months after activation to new keys.. to only disable themselves from being malicious.. not the network